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Diffstat (limited to 'app-c/appc/appc-common/src/main/java/org/openecomp/appc/configuration/Configuration.java')
| -rw-r--r-- | app-c/appc/appc-common/src/main/java/org/openecomp/appc/configuration/Configuration.java | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/app-c/appc/appc-common/src/main/java/org/openecomp/appc/configuration/Configuration.java b/app-c/appc/appc-common/src/main/java/org/openecomp/appc/configuration/Configuration.java new file mode 100644 index 000000000..f64129011 --- /dev/null +++ b/app-c/appc/appc-common/src/main/java/org/openecomp/appc/configuration/Configuration.java @@ -0,0 +1,240 @@ +/*- + * ============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.util.Properties; + +import org.slf4j.Logger; + + + +/** + * This interface defines the common configuration support that is available to the application. + * <p> + * Where properties are common to all CDP components (server, coordinator, and EPM), the property symbolic values are + * defined as part of this interface. Where they are unique to each component, they must be defined within that + * component. + * </p> + */ +public interface Configuration { + + String PROPERTY_BOOTSTRAP_FILE_NAME = "org.openecomp.appc.bootstrap.file"; + String DEFAULT_BOOTSTRAP_FILE_NAME = "appc.properties"; + String PROPERTY_BOOTSTRAP_FILE_PATH = "org.openecomp.appc.bootstrap.path"; + String DEFAULT_BOOTSTRAP_FILE_PATH = "${user.home},etc,../etc"; + String PROPERTY_RESOURCE_BUNDLES = "org.openecomp.appc.resources"; + String DEFAULT_RESOURCE_BUNDLES = "org/openecomp/appc/i18n/MessageResources"; + + /** + * This method is called to obtain a property expressed as a boolean value (true or false). The standard rules for + * {@link Boolean#valueOf(String)} are used. + * + * @param key + * The property key + * @return The value of the property expressed as a boolean, or false if it does not exist. + */ + boolean getBooleanProperty(String key); + + /** + * This method is called to obtain a property expressed as a boolean value (true or false). The standard rules for + * {@link 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. + */ + boolean getBooleanProperty(String key, boolean defaultValue); + + /** + * Returns the indicated property value expressed as a floating point double-precision value (double). The standard + * rules for {@link Double#valueOf(String)} are used. + * + * @param key + * The property to retrieve + * @return The value of the property, or 0.0 if not found or invalid + */ + double getDoubleProperty(String key); + + /** + * Returns the indicated property value expressed as a floating point double-precision value (double). The standard + * rules for {@link Double#valueOf(String)} are used. + * + * @param key + * The property to retrieve + * @param defaultValue + * The default value to be returned if the property does not exist + * @return The value of the property, or 0.0 if not found or invalid + */ + double getDoubleProperty(String key, double 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. + * @return The value of the property, or 0 if it does not exist or is invalid. + */ + int getIntegerProperty(String key); + + /** + * 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. + * @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. + */ + int getIntegerProperty(String key, int 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. + */ + long getLongProperty(String key); + + /** + * 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. + */ + long getLongProperty(String key, long 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. + */ + Properties getProperties(); + + /** + * 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. + */ + String getProperty(String key); + + /** + * 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. + */ + String getProperty(String key, String defaultValue); + + /** + * 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. + */ + boolean isPropertyDefined(String 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 + * @return True if the value is a boolean constant, or false if it does not exist or is not a correct string + */ + boolean isValidBoolean(String key); + + /** + * Returns an indication if the indicated property represents a valid double-precision floating point number. + * + * @param key + * The property to be examined + * @return True if the property is a valid representation of a double, or false if it does not exist or contains + * illegal characters. + */ + boolean isValidDouble(String key); + + /** + * Returns an indication if the property is a valid integer value or not. + * + * @param key + * The key of the property to check + * @return True if the value is a valid integer string, or false if it does not exist or contains illegal + * characters. + */ + boolean isValidInteger(String key); + + /** + * 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. + */ + boolean isValidLong(String key); + + /** + * This method allows the caller to set all properties from a provided properties object into the configuration + * property set. + * <p> + * The primary difference between this method and the factory method + * {@link ConfigurationFactory#getConfiguration(Properties)} is that this method does not clear and reload the + * configuration. Rather, this method merges the provided properties object contents into the existing properties, + * replacing any same-named keys with the values from this object. + * </p> + * + * @param properties + * The properties object to copy all properties from + */ + void setProperties(Properties properties); + + /** + * 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 + */ + void setProperty(String key, String value); +} |