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Diffstat (limited to 'appc-common/src/main/java/org/openecomp/appc/configuration/DefaultConfiguration.java')
| -rw-r--r-- | appc-common/src/main/java/org/openecomp/appc/configuration/DefaultConfiguration.java | 578 |
1 files changed, 578 insertions, 0 deletions
diff --git a/appc-common/src/main/java/org/openecomp/appc/configuration/DefaultConfiguration.java b/appc-common/src/main/java/org/openecomp/appc/configuration/DefaultConfiguration.java new file mode 100644 index 000000000..7af491724 --- /dev/null +++ b/appc-common/src/main/java/org/openecomp/appc/configuration/DefaultConfiguration.java @@ -0,0 +1,578 @@ +/*- + * ============LICENSE_START======================================================= + * openECOMP : APP-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.appc.configuration; + + + +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; +import java.security.CodeSource; +import java.security.ProtectionDomain; +import java.security.Provider; +import java.security.Provider.Service; +import java.security.Security; +import java.util.Map.Entry; +import java.util.Properties; +import java.util.jar.JarFile; +import java.util.jar.Manifest; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import org.openecomp.appc.encryption.EncryptionTool; +import org.openecomp.appc.util.UnmodifiableProperties; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * This class provides the implementation of the <code>Configuration</code> interface. It is created by the + * ConfigurationFactory and initialized with the configuration values for the process. + * + * @since Mar 18, 2014 + * @version $Id$ + */ +public final class DefaultConfiguration implements Configuration, Cloneable { + + private static final Logger logger = LoggerFactory.getLogger(DefaultConfiguration.class); + + /** + * The framework configuration properties. + */ + private Properties properties = new Properties(); + + /** + * Construct the configuration object. + */ + public DefaultConfiguration() { + } + + /** + * Clears all properties + */ + public void clear() { + properties.clear(); + } + + /** + * @see java.lang.Object#clone() + */ + @Override + protected Object clone() throws CloneNotSupportedException { + DefaultConfiguration clone = (DefaultConfiguration) super.clone(); + + clone.properties = new Properties(this.properties); + clone.properties.putAll(this.properties); + + return clone; + } + + /** + * Decrypts an encrypted value, if it is encrypted, and returns the clear text. Performs no operation on the string + * if it is not encrypted. + * + * @param value + * The value to (optionally) be decrypted + * @return The clear text + */ + @SuppressWarnings("nls") + private static String decrypt(String value) { + if (value != null) { + if (value.startsWith(EncryptionTool.ENCRYPTED_VALUE_PREFIX)) { + try { + return EncryptionTool.getInstance().decrypt(value); + } catch (Throwable e) { + String out = ""; + for (Provider p : Security.getProviders()) { + for (Service s : p.getServices()) { + String algo = s.getAlgorithm(); + out += + String.format("\n==Found Algorithm [ %s ] in provider [ %s ] and service [ %s ]", algo, + p.getName(), s.getClassName()); + } + } + logger.debug(out); + logger.warn(String.format("Could not decrypt the configuration value [%s]", value), e); + } + } + } + return value; + } + + /** + * Decrypts all elements in the properties object + */ + private void decryptAllProperties() { + if (properties != null) { + for (Entry<Object, Object> e : properties.entrySet()) { + if (e.getValue() != null) { + e.setValue(decrypt(e.getValue().toString())); + } + } + } + } + + /** + * @see java.lang.Object#equals(java.lang.Object) + */ + @Override + public boolean equals(Object obj) { + DefaultConfiguration other = (DefaultConfiguration) obj; + + if ((this.properties.size() == other.properties.size()) + && (this.properties.entrySet().containsAll(other.properties.entrySet())) + && (other.properties.entrySet().containsAll(this.properties.entrySet()))) { + return true; + } + + return false; + } + + /** + * This method will use the properties object to expand any variables that may be present in the template provided. + * Variables are represented by the string "${name}", where "name" is the name of a property defined in either the + * current configuration object, or system properties if undefined. If the value cannot be found, the variable is + * removed and an empty string is used to replace the variable. + * + * @param template + * The template to be expanded + * @return The expanded template where each variable is replaced with its value + */ + @SuppressWarnings("nls") + private String expandVariables(String template) { + if (template == null) { + return template; + } + + // Decrypt the template if needed + // template = decrypt(template); DH: Do not assign values to parameters, bad form! Also, Sonar complains + // bitterly + + StringBuffer buffer = new StringBuffer(decrypt(template)); + Pattern pattern = Pattern.compile("\\$\\{([^\\}]+)\\}"); + Matcher matcher = pattern.matcher(buffer); + while (matcher.find()) { + String variable = matcher.group(1); + String value = properties.getProperty(variable); + if (value == null) { + value = System.getProperty(variable); + } + if (value == null) { + value = ""; + } + buffer.replace(matcher.start(), matcher.end(), value); + + matcher.reset(); + } + return buffer.toString().trim(); + } + + /** + * This method is called to obtain a property expressed as a boolean value (true or false). The standard rules for + * Boolean.parseBoolean() are used. + * + * @param key + * The property key + * @return The value of the property expressed as a boolean, or false if it does not exist. + */ + @SuppressWarnings("nls") + @Override + public boolean getBooleanProperty(String key) { + return Boolean.valueOf(getProperty(key, "false")).booleanValue(); + } + + /** + * This method is called to obtain a property expressed as a boolean value (true or false). The standard rules for + * Boolean.valueOf(String) are used. + * + * @param key + * The property key + * @param defaultValue + * The default value to be returned if the property does not exist + * @return The value of the property expressed as a boolean, or false if it does not exist. + * @see org.openecomp.appc.configuration.Configuration#getBooleanProperty(java.lang.String, boolean) + */ + @Override + public boolean getBooleanProperty(String key, boolean defaultValue) { + if (isPropertyDefined(key)) { + return getBooleanProperty(key); + } + return defaultValue; + } + + /** + * Returns the indicated property value expressed as a floating point double-precision value (double). + * + * @param key + * The property to retrieve + * @return The value of the property, or 0.0 if not found + * @see org.openecomp.appc.configuration.Configuration#getDoubleProperty(java.lang.String) + */ + @SuppressWarnings("nls") + @Override + public double getDoubleProperty(String key) { + try { + return Double.valueOf(getProperty(key, "0.0")).doubleValue(); + } catch (NumberFormatException e) { + return 0.0; + } + } + + /** + * This method is called to obtain a property as a string value + * + * @param key + * The key of the property + * @param defaultValue + * The default value to be returned if the property does not exist + * @return The string value, or null if it does not exist. + * @see org.openecomp.appc.configuration.Configuration#getDoubleProperty(java.lang.String, double) + */ + @Override + public double getDoubleProperty(String key, double defaultValue) { + if (isPropertyDefined(key)) { + return getDoubleProperty(key); + } + return defaultValue; + } + + /** + * Returns the property indicated expressed as an integer. The standard rules for + * {@link Integer#parseInt(String, int)} using a radix of 10 are used. + * + * @param key + * The property name to retrieve. + * @returns The value of the property, or 0 if it does not exist or is invalid. + * @see org.openecomp.appc.configuration.Configuration#getIntegerProperty(java.lang.String) + */ + @SuppressWarnings("nls") + @Override + public int getIntegerProperty(String key) { + try { + return Integer.parseInt(getProperty(key, "0"), 10); + } catch (NumberFormatException e) { + return 0; + } + } + + /** + * Returns the property indicated expressed as an integer. The standard rules for Integer.parseInt(String, int) + * using a radix of 10 are used. + * + * @param key + * The property name to retrieve. + * @param defaultValue + * The default value to be returned if the property does not exist + * @return The value of the property, or 0 if it does not exist or is invalid. + * @see org.openecomp.appc.configuration.Configuration#getIntegerProperty(java.lang.String, int) + */ + @Override + public int getIntegerProperty(String key, int defaultValue) { + if (isPropertyDefined(key)) { + return getIntegerProperty(key); + } + return defaultValue; + } + + /** + * Returns the specified property as a long integer value, if it exists, or zero if it does not. + * + * @param key + * The key of the property desired. + * @return The value of the property expressed as an integer long value, or zero if the property does not exist or + * is not a valid integer long. + * @see org.openecomp.appc.configuration.Configuration#getLongProperty(java.lang.String) + */ + @SuppressWarnings("nls") + @Override + public long getLongProperty(String key) { + try { + return Long.parseLong(getProperty(key, "0"), 10); + } catch (NumberFormatException e) { + return 0; + } + } + + /** + * Returns the specified property as a long integer value, if it exists, or the default value if it does not exist + * or is invalid. + * + * @param key + * The key of the property desired. + * @param defaultValue + * the value to be returned if the property is not valid or does not exist. + * @return The value of the property expressed as an integer long value, or the default value if the property does + * not exist or is not a valid integer long. + * @see org.openecomp.appc.configuration.Configuration#getLongProperty(java.lang.String, long) + */ + @Override + public long getLongProperty(String key, long defaultValue) { + if (isPropertyDefined(key)) { + return getLongProperty(key); + } + return defaultValue; + } + + /** + * This method can be called to retrieve a properties object that is immutable. Any attempt to modify the properties + * object returned will result in an exception. This allows a caller to view the current configuration as a set of + * properties. + * + * @return An unmodifiable properties object. + * @see org.openecomp.appc.configuration.Configuration#getProperties() + */ + @Override + public Properties getProperties() { + return new UnmodifiableProperties(properties); + } + + /** + * This method is called to obtain a property as a string value + * + * @param key + * The key of the property + * @return The string value, or null if it does not exist. + */ + @Override + public String getProperty(String key) { + String value = properties.getProperty(key); + if (value == null) { + return null; + } + return expandVariables(value.trim()); + } + + /** + * This method is called to obtain a property as a string value + * + * @param key + * The key of the property + * @param defaultValue + * The default value to be returned if the property does not exist + * @return The string value, or null if it does not exist. + * @see org.openecomp.appc.configuration.Configuration#getProperty(java.lang.String, java.lang.String) + */ + @Override + public String getProperty(String key, String defaultValue) { + if (isPropertyDefined(key)) { + return getProperty(key); + } + + if (defaultValue == null) { + return null; + } + + return expandVariables(defaultValue.trim()); + } + + /** + * @see java.lang.Object#hashCode() + */ + @Override + public int hashCode() { + return (properties == null ? 0 : properties.hashCode()); + } + + /** + * Returns true if the named property is defined, false otherwise. + * + * @param key + * The key of the property we are interested in + * @return True if the property exists. + */ + @Override + public boolean isPropertyDefined(String key) { + return properties.containsKey(key); + } + + /** + * Returns an indication of the validity of the boolean property. A boolean property is considered to be valid only + * if it has the value "true" or "false" (ignoring case). + * + * @param key + * The property to be checked + * @returns True if the value is a boolean constant, or false if it does not exist or is not a correct string + * @see org.openecomp.appc.configuration.Configuration#isValidBoolean(java.lang.String) + */ + @SuppressWarnings("nls") + @Override + public boolean isValidBoolean(String key) { + String value = getProperty(key); + if (value != null) { + value = value.toLowerCase(); + return value.matches("true|false"); + } + return false; + } + + /** + * Returns an indication if the indicated property represents a valid double-precision floating point number. + * + * @param key + * The property to be examined + * @returns True if the property is a valid representation of a double, or false if it does not exist or contains + * illegal characters. + * @see org.openecomp.appc.configuration.Configuration#isValidDouble(java.lang.String) + */ + @Override + public boolean isValidDouble(String key) { + String value = getProperty(key); + if (value != null) { + try { + Double.valueOf(value); + return true; + } catch (NumberFormatException e) { + return false; + } + } + return false; + } + + /** + * Returns an indication if the property is a valid integer value or not. + * + * @param key + * The key of the property to check + * @returns True if the value is a valid integer string, or false if it does not exist or contains illegal + * characters. + * @see org.openecomp.appc.configuration.Configuration#isValidInteger(java.lang.String) + */ + @Override + public boolean isValidInteger(String key) { + String value = getProperty(key); + if (value != null) { + try { + Integer.parseInt(value.trim(), 10); + return true; + } catch (NumberFormatException e) { + return false; + } + } + return false; + } + + /** + * Determines is the specified property exists and is a valid representation of an integer long value. + * + * @param key + * The property to be checked + * @return True if the property is a valid representation of an integer long value, and false if it either does not + * exist or is not valid. + * @see org.openecomp.appc.configuration.Configuration#isValidLong(java.lang.String) + */ + @Override + public boolean isValidLong(String key) { + String value = getProperty(key); + if (value != null) { + try { + Long.parseLong(value.trim(), 10); + return true; + } catch (NumberFormatException e) { + return false; + } + } + return false; + } + + /** + * This method allows an implementation to load configuration properties that may override default values. + * + * @param is + * An input stream that contains the properties to be loaded + */ + public void setProperties(InputStream is) { + try { + properties.load(is); + } catch (IOException e) { + e.printStackTrace(); + } + } + + /** + * This method allows an implementation to load configuration properties that may override default values. + * + * @param props + * An optional Properties object to be merged into the configuration, replacing any same-named + * properties. + * @see org.openecomp.appc.configuration.Configuration#setProperties(java.util.Properties) + */ + @Override + public void setProperties(Properties props) { + properties.putAll(props); + decryptAllProperties(); + } + + /** + * This method allows a caller to insert a new property definition into the configuration object. This allows the + * application to adjust or add to the current configuration. If the property already exists, it is replaced with + * the new value. + * + * @param key + * The key of the property to be defined + * @param value + * The value of the property to be defined + * @see org.openecomp.appc.configuration.Configuration#setProperty(java.lang.String, java.lang.String) + */ + @Override + public void setProperty(String key, String value) { + properties.setProperty(key, decrypt(value)); + } + + /** + * @see java.lang.Object#toString() + */ + @SuppressWarnings("nls") + @Override + public String toString() { + return String.format("Configuration: %d properties, keys:[%s]", properties.size(), properties.keySet() + .toString()); + } + + /** + * This is a helper method to read the manifest of the jar file that this class was loaded from. Note that this will + * only work if the code is packaged in a jar file. If it is an open deployment, such as under eclipse, this will + * not work and there is code added to detect that case. + * + * @return The manifest object from the jar file, or null if the code is not packaged in a jar file. + */ + @SuppressWarnings({ + "unused", "nls" + }) + private Manifest getManifest() { + ProtectionDomain domain = getClass().getProtectionDomain(); + CodeSource source = domain.getCodeSource(); + URL location = source.getLocation(); + String path = location.getPath(); + int index = path.indexOf('!'); + if (index != -1) { + path = path.substring(0, index); + } + if (path.endsWith(".jar")) { + try (JarFile jar = new JarFile(location.getFile())) { + return jar.getManifest(); + } catch (IOException e) { + logger.error("getManifest", e); + } + } + + return null; + } +} |