diff options
Diffstat (limited to 'sliPluginUtils/provider/src/main/java/org/openecomp/sdnc')
6 files changed, 1040 insertions, 0 deletions
diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtils.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtils.java new file mode 100644 index 0000000..71cddb8 --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtils.java @@ -0,0 +1,624 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.sdnc.sli.SliPluginUtils; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.Objects; +import java.util.Properties; +import java.util.UUID; + +import org.apache.commons.lang3.StringUtils; +import org.openecomp.sdnc.sli.SvcLogicContext; +import org.openecomp.sdnc.sli.SvcLogicException; +import org.openecomp.sdnc.sli.SvcLogicJavaPlugin; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * A utility class used to streamline the interface between Java plugins, + * the Service Logic Context, and Directed Graphs. + * @version 7.0.1 + * @see org.openecomp.sdnc.sli.SvcLogicContext + */ +public class SliPluginUtils implements SvcLogicJavaPlugin { + public enum LogLevel { + TRACE, DEBUG, INFO, WARN, ERROR; + } + + private static final Logger LOG = LoggerFactory.getLogger(SliPluginUtils.class); + + + // ========== CONSTRUCTORS ========== + + public SliPluginUtils() {} + + public SliPluginUtils( Properties props ) {} + + + + // ========== CONTEXT MEMORY FUNCTIONS ========== + + /** + * Removes 1 or more elements from a list in context memory. + * <p> + * Values are removed based on either the index in the list, a key-value + * pair, or a list of key-value pairs that all must match in the element. + * @param parameters + * @param ctx Reference to context memory + * @throws SvcLogicException All exceptions are wrapped in + * SvcLogicException for compatibility with SLI. + * @since 7.0.1 + */ + public void ctxListRemove( Map<String,String> parameters, SvcLogicContext ctx ) throws SvcLogicException { + try{ + LOG.debug( "ENTERING Execute Node \"ctxListRemove\"" ); + + // Validate, Log, & read parameters + checkParameters(parameters, new String[]{"list_pfx"}, LOG); + logExecuteNodeParameters(parameters, LOG, LogLevel.DEBUG); + String list_pfx = parameters.get("list_pfx"); + String param_index = parameters.get("index"); + String param_key = parameters.get("key"); + String param_value = parameters.get("value"); + String param_keys_length = parameters.get("keys_length"); + + // Initialize context memory list mimic + SvcLogicContextList list; + + // Process based on input parameters: + // index: remove object at specific index + // key & value: remove all objects with key-value pair + // keys_length: remove all objects that match all key-value pairs + // in list + if( param_index != null ) { + // Parse index + LOG.trace("executing remove by index logic"); + int index; + try { + index = Integer.parseInt(param_index); + } + catch( NumberFormatException e ) { + throw new IllegalArgumentException("\"index\" parameter is not a number. index = " + param_index, e); + } + + // Extract list from context memory & remove object @ index + LOG.trace("extracting list from context memory"); + list = SvcLogicContextList.extract(ctx, list_pfx); + LOG.trace("removing elements from list"); + list.remove(index); + } + else if( param_value != null ) { + if( param_key == null ) { param_key = ""; } + + // Extract list from context memory & remove objects with + // key-value pair + LOG.trace("executing remove by key-value pair logic"); + LOG.trace("extracting list from context memory"); + list = SvcLogicContextList.extract(ctx, list_pfx); + LOG.trace("removing elements from list"); + list.remove( param_key, param_value ); + } + else if( param_keys_length != null ) { + // Parse keys_length + LOG.trace("executing remove by key-value pair list logic"); + int keys_length; + try { + keys_length = Integer.parseInt(param_keys_length); + } + catch( NumberFormatException e ) { + throw new IllegalArgumentException("\"keys_length\" parameters is not a number. keys_length = " + param_keys_length, e); + } + + // Obtain key-value pairs to check from parameters + LOG.trace("reading keys parameter list"); + HashMap<String,String> keys_values = new HashMap<>(); + for( int i = 0; i < keys_length; i++ ) { + keys_values.put(parameters.get("keys[" + i + "].key"), parameters.get("keys[" + i + "].value")); + } + + // Extract list from context memory & remove objects with all + // key-value pairs matching + LOG.trace("extracting list from context memory"); + list = SvcLogicContextList.extract(ctx, list_pfx); + LOG.trace("removing elements from list"); + list.remove(keys_values); + } + else { + throw new IllegalArgumentException("Required parameters missing. Requires one of: index, key & value, or keys_length array"); + } + + // Remove index from list + LOG.trace("writing list back into context memory"); + list.writeToContext(ctx); + } + catch( Exception e ) { + throw new SvcLogicException( "An error occurred in the ctxListRemove Execute node", e ); + } + finally { + LOG.debug( "EXITING Execute Node \"ctxListRemove\"" ); + } + } + + // TODO: javadoc + public void ctxSortList( Map<String, String> parameters, SvcLogicContext ctx ) throws SvcLogicException { + checkParameters(parameters, new String[]{"list","delimiter"}, LOG); + ArrayList<SortableCtxListElement> list = new ArrayList<>(); + + String[] sort_fields = null; + if( parameters.containsKey("sort-fields") ) { + sort_fields = parameters.get("sort-fields").split(parameters.get("delimiter"), 0); + } + + String ctx_list_str = parameters.get("list"); + int listSz = getArrayLength(ctx, ctx_list_str); + + + + for( int i = 0; i < listSz; i++ ) { + list.add( new SortableCtxListElement(ctx, ctx_list_str + '[' + i + ']', sort_fields) ); + } + Collections.sort(list); + + ctxBulkErase(ctx, ctx_list_str); + int i = 0; + for( SortableCtxListElement list_element : list ) { + for( Map.Entry<String,String> entry : list_element.child_elements.entrySet() ) { + if( sort_fields == null ) { + ctx.setAttribute(ctx_list_str + '[' + i + ']', entry.getValue()); + } + else { + ctx.setAttribute(ctx_list_str + '[' + i + "]." + entry.getKey(), entry.getValue()); + } + } + i++; + } + // Reset list length (removed by ctxBulkErase above) + ctx.setAttribute(ctx_list_str+"_length", ""+listSz); + } + + // TODO: javadoc + public void generateUUID( Map<String, String> parameters, SvcLogicContext ctx ) throws SvcLogicException { + checkParameters(parameters, new String[]{"ctx-destination"}, LOG); + ctx.setAttribute(parameters.get("ctx-destination"), UUID.randomUUID().toString() ); + } + + /** + * Provides substring functionality to Directed Graphs. + * <p> + * Calls either String.substring(String beginIndex) or + * String.substring(String beginInded, String endIndex) if the end-index + * is present or not. + * @param parameters HashMap<String,String> of parameters passed by the DG to this function + * <table border="1"> + * <thead><th>parameter</th><th>Mandatory/Optional</th><th>description</th></thead> + * <tbody> + * <tr><td>string</td><td>Mandatory</td><td>String to perform substring on</td></tr> + * <tr><td>result</td><td>Mandatory</td><td>Key in context memory to populate the resulting string in</td></tr> + * <tr><td>begin-index</td><td>Mandatory</td><td>Beginning index to pass to Java substring function</td></tr> + * <tr><td>end-index</td><td>Optional</td><td>Ending index to pass to Java substring function. If not included, String.substring(begin) will be called.</td></tr> + * </tbody> + * </table> + * @param ctx Reference to context memory + * @throws SvcLogicException + * @since 8.0.1 + */ + public void substring( Map<String, String> parameters, SvcLogicContext ctx ) throws SvcLogicException { + try { + checkParameters( parameters, new String[]{"string","begin-index","result"}, LOG ); + final String string = parameters.get("string"); + final String result = parameters.get("result"); + final String begin = parameters.get("begin-index"); + final String end = parameters.get("end-index"); + + if( StringUtils.isEmpty(end) ) { + ctx.setAttribute( result, string.substring(Integer.parseInt(begin)) ); + } + else { + ctx.setAttribute( result, string.substring(Integer.parseInt(begin), Integer.parseInt(end)) ); + } + } + catch( Exception e ) { + throw new SvcLogicException( "An error occurred while the Directed Graph was performing a substring", e ); + } + } + + + + // ========== PUBLIC STATIC UTILITY FUNCTIONS ========== + + /** + * Throws an exception and writes an error to the log file if a required + * parameters is not found in the parametersMap. + * <p> + * Use at the beginning of functions that can be called by Directed Graphs + * and can take parameters to verify that all parameters have been provided + * by the Directed Graph. + * @param parametersMap parameters Map passed to this node + * @param requiredParams Array of parameters required by the calling function + * @param log Reference to Logger to log to + * @throws SvcLogicException if a String in the requiredParams array is + * not a key in parametersMap. + * @since 1.0 + */ + public static final void checkParameters( Map<String,String> parametersMap, String[] requiredParams, Logger log ) throws SvcLogicException { + for( String param : requiredParams ) { + if( !parametersMap.containsKey(param) ) { + log.error("Required parameter \"" + param + "\" was not found in parameter list."); + throw new SvcLogicException("Required parameter \"" + param + "\" was not found in parameter list"); + } + } + } + + /** + * Removes all key-value pairs with keys that begin with pfx + * @param ctx Reference to context memory + * @param pfx Prefix of key-value pairs to remove + * @since 1.0 + */ + public static final void ctxBulkErase( SvcLogicContext ctx, String pfx ) { + ArrayList<String> Keys = new ArrayList<>( ctx.getAttributeKeySet() ); + for( String key : Keys ) { + if( key.startsWith( pfx ) ) { + ctx.setAttribute( pfx + key.substring(pfx.length()) , null); + } + } + } + + /** + * Copies all context memory key-value pairs that start with src_pfx to + * the keys that start with dest_pfx + suffix, where suffix is the result + * of {@code key.substring(src_pfx.length())}. + * <p> + * Does NOT guarantee removal of all keys at the destination before + * copying, but will overwrite any destination keys that have a + * corresponding source key. Use {@link #ctxBulkErase(SvcLogicContext, String) ctxBulkErase} + * before copy to erase destination root before copying from source. + * @param ctx Reference to context memory. + * @param src_pfx Prefix of the keys to copy values from. + * @param dest_pfx Prefix of the keys to copy values to. + * @since 1.0 + */ + public static final void ctxBulkCopy( SvcLogicContext ctx, String src_pfx, String dest_pfx ) { + // Remove trailing period from dest_pfx + if( dest_pfx.charAt(dest_pfx.length()-1) == '.' ) { + dest_pfx = dest_pfx.substring(0,dest_pfx.length()-1); + } + + // For each context key that begins with src_pfx, set the value of the + // key dest_pfx + the suffix of the key to the key's value + ArrayList<String> Keys = new ArrayList<>(ctx.getAttributeKeySet()); + for( String key : Keys ) { + if( key.startsWith(src_pfx) ) { + // Get suffix (no leading period) + String suffix = key.substring(src_pfx.length()); + if( suffix.charAt(0) == '.') { + suffix = suffix.substring(1); + } + + // Set destination's value to key's value + ctx.setAttribute(dest_pfx + '.' + suffix, ctx.getAttribute(key)); + } + } + } + + /** + * Creates and returns a {@code Map<String, String>} that is a subset of + * context memory where all keys begin with the prefix. + * @param ctx Reference to context memory. + * @param prefix Returned map's keys should all begin with this value. + * @return A {@code Map<String, String>} containing all the key-value pairs + * in ctx whose key begins with prefix. + */ + public static final Map<String, String> ctxGetBeginsWith( SvcLogicContext ctx, String prefix ) { + Map<String, String> prefixMap = new HashMap<>(); + + for( String key : ctx.getAttributeKeySet() ) { + if( key.startsWith(prefix) ) { + prefixMap.put( key, ctx.getAttribute(key) ); + } + } + + return prefixMap; + } + + /** + * Returns true if key's value in context memory is "" or if it doesn't + * exist in context memory. + * @param ctx Reference to context memory. + * @param key Key to search for. + * @return true if key's value in context memory is "" or if it doesn't + * exist in context memory. + * @since 1.0 + */ + public static final boolean ctxKeyEmpty( SvcLogicContext ctx, String key ) { + String value = ctx.getAttribute(key); + return value == null || value.isEmpty(); + } + + /** + * Adds all key-value pairs in the entries Map to context memory. + * @param ctx Reference to context memory. Value's {@code toString()} + * function is used to add it. + * @param entries {@code Map<String, ?>} of key-value pairs to add to + * context memory. Value's {@code toString()} function is used to add it. + * @return Reference to context memory to be used for function chaining. + */ + public static final SvcLogicContext ctxPutAll( SvcLogicContext ctx, Map<String, ?> entries ) { + for( Map.Entry<String, ?> entry : entries.entrySet() ) { + ctxSetAttribute( ctx, entry.getKey(), entry.getValue() ); + //ctx.setAttribute(entry.getKey(), entry.getValue().toString()); + } + + return ctx; + } + + /** + * Sets a key in context memory to the output of object's toString(). The + * key is deleted from context memory if object is null. + * @param ctx Reference to context memory. + * @param key Key to set. + * @param object Object whose toString() will be the value set + */ + public static final void ctxSetAttribute( SvcLogicContext ctx, String key, Object object ) { + if( object == null ) { + ctx.setAttribute(key, null); + } + else { + ctx.setAttribute(key, object.toString()); + } + } + + /** + * Sets a key in context memory to the output of object's toString(). + * <p> + * The key is deleted from context memory if object is null. The key and + * value set in context memory are logged to the Logger at the provided + * logLevel level. + * @param <O> Any Java object + * @param ctx Reference to context memory. + * @param key Key to set. + * @param obj Object whose toString() will be the value set + * @param LOG Logger to log to + * @param logLevel level to log at in Logger + */ + public static final <O extends Object> void ctxSetAttribute( SvcLogicContext ctx, String key, O obj, Logger LOG, LogLevel logLevel ) { + String value = Objects.toString( obj, null ); + ctx.setAttribute( key, value ); + if( logLevelIsEnabled(LOG, logLevel ) ) { + if( value == null ) { + logMessageAtLevel( LOG, logLevel, "Deleting " + key ); + } + else { + logMessageAtLevel( LOG, logLevel, "Setting " + key + " = " + value ); + } + } + } + + /** + * Utility function used to get an array's length from context memory. + * Will return 0 if key doesn't exist in context memory or isn't numeric. + * <p> + * Use to obtain a context memory array length without having to worry + * about throwing a NumberFormatException. + * @param ctx Reference to context memory + * @param key Key in context memory whose value is the array's length. If + * the key doesn't end in "_length", then "_length is appended. + * @param log Reference to Logger to log to + * @return The array length or 0 if the key is not found in context memory. + * @since 1.0 + */ + public static final int getArrayLength( SvcLogicContext ctx, String key ) { + return getArrayLength(ctx, key, null, null, null); + } + + /** + * Utility function used to get an array's length from context memory. + * Will return 0 if key doesn't exist in context memory or isn't numeric + * and print the provided log message to the configured log file. + * <p> + * Use to obtain a context memory array length without having to worry + * about throwing a NumberFormatException. + * @param ctx Reference to context memory. + * @param key Key in context memory whose value is the array's length. If + * the key doesn't end in "_length", then "_length is appended. + * @param log Reference to Logger to log to. Doesn't log if null. + * @param logLevel Logging level to log the message at if the context + * memory key isn't found. Doesn't log if null. + * @param log_message Message to log if the context memory key isn't found. + * Doesn't log if null. + * @return The array length or 0 if the key is not found in context memory. + * @since 1.0 + */ + public static final int getArrayLength( SvcLogicContext ctx, String key, Logger log, LogLevel logLevel, String log_message ) { + String ctxKey = key.endsWith("_length") ? key : key + "_length"; + try { + return Integer.parseInt(ctx.getAttribute(ctxKey)); + } + catch( NumberFormatException e ) { + if( log != null && logLevel != null && log_message != null ) { + switch( logLevel ) { + case TRACE: + log.trace(log_message); + case DEBUG: + log.debug(log_message); + break; + case INFO: + log.info(log_message); + break; + case WARN: + log.warn(log_message); + break; + case ERROR: + log.error(log_message); + break; + } + } + } + + return 0; + } + + /** + * Prints sorted context memory key-value pairs to the log file at the log + * level. Returns immediately if the log level isn't enabled. + * <p> + * O(n log(n)) time where n = size of context memory + * @param ctx Reference to context memory + * @param log Reference to Logger to log to + * @param logLevel Logging level to log the context memory key-value pairs + * at. + * @since 1.0 + */ + public static final void logContextMemory( SvcLogicContext ctx, Logger log, LogLevel logLevel ) { + logLevelIsEnabled( log, logLevel ); + + // Print sorted context memory key-value pairs to the log + ArrayList<String> keys = new ArrayList<>(ctx.getAttributeKeySet()); + Collections.sort(keys); + for( String key : keys ) { + logMessageAtLevel( log, logLevel, key + " = " + ctx.getAttribute(key) ); + } + } + + + + // ========== PRIVATE FUNCTIONS ========== + + // TODO: javadoc + /** + * + * @param parameters + * @param log + * @param loglevel + * @since 7.0.1 + */ + public static final void logExecuteNodeParameters( Map<String,String> parameters, Logger log, LogLevel loglevel ) { + logLevelIsEnabled( log, loglevel ); + + for( Map.Entry<String,String> param : parameters.entrySet() ) { + logMessageAtLevel( log, loglevel, "PARAM: " + param.getKey() + " = " + param.getValue() ); + } + } + + // TODO: javadoc + /** + * Returns true if the loglevel is enabled. Otherwise, returns false. + * @param log Reference to logger + * @param loglevel Log level to check if enabled + * @return True if the loglevel is enabled. Otherwise, false + * @since 7.0.1 + */ + private static final boolean logLevelIsEnabled( Logger log, LogLevel loglevel ) { + // Return immediately if logging level isn't enabled + switch( loglevel ) { + case TRACE: + if( log.isTraceEnabled() ) { return true; } + return false; + case DEBUG: + if( log.isDebugEnabled() ) { return true; } + return false; + case INFO: + if( log.isInfoEnabled() ) { return true; } + return false; + case WARN: + if( log.isWarnEnabled() ) { return true; } + return false; + case ERROR: + if( log.isErrorEnabled() ) { return true; } + return false; + default: + throw new IllegalArgumentException("Unknown LogLevel: " + loglevel.toString()); + } + } + + // TODO: javadoc + /** + * + * @param log + * @param loglevel + * @param msg + * @since 7.0.1 + */ + private static final void logMessageAtLevel( Logger log, LogLevel loglevel, String msg ) { + switch( loglevel ) { + case TRACE: + log.trace(msg); + return; + case DEBUG: + log.debug(msg); + return; + case INFO: + log.info(msg); + return; + case WARN: + log.warn(msg); + return; + case ERROR: + log.error(msg); + return; + } + } + + + + // ========== LOCAL CLASSES ========== + + private class SortableCtxListElement implements Comparable<SortableCtxListElement> { + HashMap<String,String> child_elements = new HashMap<>(); + String[] sort_fields; + + public SortableCtxListElement( SvcLogicContext ctx, String root, String[] sort_fields ) { + this.sort_fields = sort_fields; + + for( String key : ctx.getAttributeKeySet() ) { + if( key.startsWith(root) ) { + if( key.length() == root.length() ) { + child_elements.put("", ctx.getAttribute(key)); + break; + } + else { + child_elements.put(key.substring(root.length()+1), ctx.getAttribute(key)); + } + } + } + } + + @Override + public int compareTo(SortableCtxListElement arg0) { + if( sort_fields == null ) { + return this.child_elements.get("").compareTo(arg0.child_elements.get("")); + } + + for( String field : this.sort_fields ) { + int result = this.child_elements.get(field).compareTo(arg0.child_elements.get(field)); + if( result != 0 ) { + return result; + } + } + + return 0; + } + } +} diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtilsActivator.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtilsActivator.java new file mode 100644 index 0000000..6ec1214 --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SliPluginUtilsActivator.java @@ -0,0 +1,88 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.sdnc.sli.SliPluginUtils; + + +import java.util.LinkedList; +import java.util.List; +import java.util.Properties; + +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.osgi.framework.ServiceRegistration; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +public class SliPluginUtilsActivator implements BundleActivator { + +// private static final String SLIPLUGINUTILS_PROP_VAR = "/slipluginutils.properties"; +// private static final String SDNC_CONFIG_DIR = "SDNC_CONFIG_DIR"; + + @SuppressWarnings("rawtypes") + private final List<ServiceRegistration> registrations = new LinkedList<>(); + + private static final Logger LOG = LoggerFactory.getLogger(SliPluginUtilsActivator.class); + + @Override + public void start(BundleContext ctx) throws Exception { + // Read properties + Properties props = new Properties(); + + // ---uncomment below when adding properties file--- + /* + String propDir = System.getenv(SDNC_CONFIG_DIR); + if (propDir == null) { + throw new ConfigurationException( + "Cannot find config file - " + SLIPLUGINUTILS_PROP_VAR + " and " + SDNC_CONFIG_DIR + " unset"); + } + String propPath = propDir + SLIPLUGINUTILS_PROP_VAR; + + File propFile = new File(propPath); + + if (!propFile.exists()) { + throw new ConfigurationException("Missing configuration properties file : " + propFile); + } + + try { + props.load(new FileInputStream(propFile)); + } catch (Exception e) { + throw new ConfigurationException("Could not load properties file " + propPath, e); + } + */ + + SliPluginUtils plugin = new SliPluginUtils(props); + + LOG.info("Registering service "+plugin.getClass().getName()); + registrations.add(ctx.registerService(plugin.getClass().getName(), plugin, null)); + } + + @Override + public void stop(BundleContext ctx) throws Exception { + + for (@SuppressWarnings("rawtypes") ServiceRegistration registration: registrations) + { + registration.unregister(); + registration = null; + } + } +} diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextList.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextList.java new file mode 100644 index 0000000..9030008 --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextList.java @@ -0,0 +1,221 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.sdnc.sli.SliPluginUtils; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.HashSet; +import java.util.ListIterator; +import java.util.Map; + +import org.apache.commons.lang3.StringUtils; +import org.openecomp.sdnc.sli.SvcLogicContext; + +/** + * A utility class used to manage list manipulation in the context memory. + * @see org.openecomp.sdnc.sli.SvcLogicContext + */ +public class SvcLogicContextList { + /** + * Internal flag indicating if list should be deleted from context memory + * when it is copied into the SvcLogicContextList object. + */ + private enum OperType { + COPY, EXTRACT + } + + // TODO: javadoc + protected final String prefix; + // TODO: javadoc + protected final ArrayList<HashMap<String,String>> list; + + + // TODO: javadoc + public SvcLogicContextList( SvcLogicContext ctx, String list_prefix ) { + this(ctx, list_prefix, OperType.COPY); + } + + // TODO: javadoc + private SvcLogicContextList( SvcLogicContext ctx, String list_prefix, OperType operation ) { + this.prefix = list_prefix; + + // Initialize list + int capacity = getCtxListLength(ctx, prefix); + this.list = new ArrayList<>( capacity ); + for( int i = 0; i < capacity; i++ ) { + this.list.add(i, new HashMap<String,String>()); + } + + // Populate "elements" in list + String prefix_bracket = this.prefix + '['; + for( String key : new HashSet<>(ctx.getAttributeKeySet()) ) { + if( key.startsWith(prefix_bracket) ) { + // Extract the index of the list + int index = getCtxListIndex(key, this.prefix, capacity); + + // Store the + String suffix = key.substring((prefix_bracket + index + ']').length()); + suffix = suffix.isEmpty() ? suffix : suffix.substring(1); + this.list.get(index).put( suffix, ctx.getAttribute(key)); + + // If flag to extract set, remove data from context memory as + // it is read into this list + if( operation == OperType.EXTRACT ) { + ctx.setAttribute(key, null); + } + } + } + + // If flag to extract set, remove list _length value from cxt mem + if( operation == OperType.EXTRACT ) { + ctx.setAttribute(this.prefix + "_length", null); + } + } + + // TODO: javadoc + public static SvcLogicContextList extract( SvcLogicContext ctx, String list_prefix ) { + return new SvcLogicContextList(ctx, list_prefix, OperType.EXTRACT); + } + + + // ========== PUBLIC FUNCTIONS ========== + + // TODO: javadoc + public HashMap<String,String> get( int index ) { + return this.list.get(index); + } + + // TODO: javadoc + public HashMap<String,String> remove( int index ) { + return this.list.remove(index); + } + + // TODO: javadoc + public void remove( String value ) { + remove( "", value ); + } + + // TODO: javadoc + public void remove( String key, String value ) { + if( value == null ) { + throw new IllegalArgumentException("value cannot be null"); + } + + ListIterator<HashMap<String,String>> itr = this.list.listIterator(); + while( itr.hasNext() ) { + if( value.equals(itr.next().get(key)) ) { + itr.remove(); + } + } + } + + // TODO javadoc + public void remove( Map<String,String> primary_key ) { + ListIterator<HashMap<String,String>> itr = this.list.listIterator(); + while( itr.hasNext() ) { + boolean found = true; + HashMap<String,String> list_element = itr.next(); + for( Map.Entry<String,String> key : primary_key.entrySet() ) { + if( !key.getValue().equals(list_element.get(key.getKey())) ) { + found = false; + break; + } + } + + if( found ) { + itr.remove(); + } + } + } + + // TODO: javadoc + public int size() { + return list.size(); + } + + // TODO: javadoc + public void writeToContext( SvcLogicContext ctx ) { + ctx.setAttribute( prefix + "_length", Integer.toString(this.list.size()) ); + + for( int i = 0; i < this.list.size(); i++ ) { + for( Map.Entry<String,String> entry : this.list.get(i).entrySet() ) { + if( entry.getKey().equals("") ) { + ctx.setAttribute(prefix + '[' + i + ']', entry.getValue()); + } + else { + ctx.setAttribute(prefix + '[' + i + "]." + entry.getKey(), entry.getValue()); + } + } + } + } + + + + // ========== PRIVATE STATIC FUNCTIONS ========== + + // TODO: javadoc + private static int getCtxListIndex( String key, String prefix, int list_size ) { + int index = getCtxListIndex( key, prefix ); + if( index >= list_size ) { + throw new IllegalArgumentException( + "Context memory list \"" + prefix + "[]\" contains an index >= the size of the list", + new ArrayIndexOutOfBoundsException( "index \"" + index + "\" is outside the bounds of the context memory list \"" + prefix + "[]. List Length = " + list_size ) + ); + } + else if( index < 0 ) { + throw new IllegalArgumentException( + "Context memory list \"" + prefix + "[]\" contains a negative index", + new NegativeArraySizeException( "index \"" + index + "\" of context memory list is negative" ) + ); + } + + return index; + } + + // TODO: javadoc + private static int getCtxListIndex( String key, String prefix ) { + String ctx_index_str = StringUtils.substringBetween(key.substring(prefix.length()), "[", "]"); + try { + return Integer.parseInt( ctx_index_str ); + } + catch( NumberFormatException e ) { + throw new IllegalStateException("Could not parse index value \"" + ctx_index_str + "\" in context memory key \"" + key + "\"", e); + } + } + + // TODO: javadoc + private static int getCtxListLength( SvcLogicContext ctx, String prefix ) { + String _length_key = prefix + "_length"; + String _length_val_str = ctx.getAttribute(_length_key); + try { + return Integer.parseInt(_length_val_str); + } + catch( NumberFormatException e ) { + if( _length_val_str == null ) { + throw new IllegalStateException( "Could not find list length \"" + _length_key + "\" in context memory." ); + } + else { + throw new IllegalStateException( "Could not parse index value \"" + _length_val_str + "\" of context memory list length \"" + _length_key + "\"" , e ); + } + } + } +} diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextObject.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextObject.java new file mode 100644 index 0000000..fc6b71e --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/SvcLogicContextObject.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.sdnc.sli.SliPluginUtils; + +import org.openecomp.sdnc.sli.SvcLogicContext; + +public interface SvcLogicContextObject { + public void writeToContext( SvcLogicContext ctx, String root ); +} diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/YesNo.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/YesNo.java new file mode 100644 index 0000000..7f400ef --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/YesNo.java @@ -0,0 +1,51 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +/** + * + */ +package org.openecomp.sdnc.sli.SliPluginUtils.commondatastructures; + +/** + * An enum found in many Yang models. It is commonly used as a + * substitute for boolean. + */ +public enum YesNo { + N, Y; + + /** + * Method overload for {@link #valueOf(String)} for the char primative + */ + public static YesNo valueOf( final char name ) { + return YesNo.valueOf( Character.toString(name) ); + } + + /** + * Method overload for {@link #valueOf(String)} for the Character object + */ + public static YesNo valueOf( final Character name ) { + if( name == null ) { + return null; + } + + return YesNo.valueOf( name.toString() ); + } +} diff --git a/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/package-info.java b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/package-info.java new file mode 100644 index 0000000..526c215 --- /dev/null +++ b/sliPluginUtils/provider/src/main/java/org/openecomp/sdnc/sli/SliPluginUtils/commondatastructures/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : SDN-C + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +/** + * + */ +/** + * + */ +package org.openecomp.sdnc.sli.SliPluginUtils.commondatastructures; |