Java tutorial
package org.apache.maven.profiles.activation; /* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. */ import java.util.Properties; import org.apache.maven.model.Activation; import org.apache.maven.model.ActivationProperty; import org.apache.maven.model.Profile; import org.codehaus.plexus.context.Context; import org.codehaus.plexus.context.ContextException; import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable; import org.codehaus.plexus.util.StringUtils; /** * SystemPropertyProfileActivator */ @Deprecated public class SystemPropertyProfileActivator extends DetectedProfileActivator implements Contextualizable { private Properties properties; public void contextualize(Context context) throws ContextException { properties = (Properties) context.get("SystemProperties"); } protected boolean canDetectActivation(Profile profile) { return profile.getActivation() != null && profile.getActivation().getProperty() != null; } public boolean isActive(Profile profile) throws ProfileActivationException { Activation activation = profile.getActivation(); ActivationProperty property = activation.getProperty(); if (property != null) { String name = property.getName(); boolean reverseName = false; if (name == null) { throw new ProfileActivationException( "The property name is required to activate the profile '" + profile.getId() + "'"); } if (name.startsWith("!")) { reverseName = true; name = name.substring(1); } String sysValue = properties.getProperty(name); String propValue = property.getValue(); if (StringUtils.isNotEmpty(propValue)) { boolean reverseValue = false; if (propValue.startsWith("!")) { reverseValue = true; propValue = propValue.substring(1); } // we have a value, so it has to match the system value... boolean result = propValue.equals(sysValue); if (reverseValue) { return !result; } else { return result; } } else { boolean result = StringUtils.isNotEmpty(sysValue); if (reverseName) { return !result; } else { return result; } } } return false; } }