001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.commons.weaver;
020
021import java.io.File;
022import java.util.List;
023import java.util.Properties;
024import java.util.ServiceLoader;
025import java.util.logging.Logger;
026
027import org.apache.commons.weaver.lifecycle.WeaveLifecycle; //NOPMD used in javadoc
028import org.apache.commons.weaver.model.WeaveEnvironment;
029import org.apache.commons.weaver.spi.Weaver;
030
031/**
032 * Implements {@link WeaveLifecycle#WEAVE}.
033 */
034public class WeaveProcessor extends ProcessorBase<Weaver> {
035
036    /**
037     * Create a new {@link WeaveProcessor} instance using the {@link ServiceLoader} mechanism.
038     *
039     * @param classpath not {@code null}
040     * @param target not {@code null}
041     * @param configuration not {@code null}
042     */
043    public WeaveProcessor(final List<String> classpath, final File target, final Properties configuration) {
044        super(classpath, target, configuration, getServiceInstances(Weaver.class));
045    }
046
047    /**
048     * Create a new {@link WeaveProcessor} instance.
049     *
050     * @param classpath not {@code null}
051     * @param target not {@code null}
052     * @param configuration not {@code null}
053     * @param providers not (@code null}
054     */
055    public WeaveProcessor(final List<String> classpath, final File target, final Properties configuration,
056        final Iterable<Weaver> providers) {
057        super(classpath, target, configuration, providers);
058    }
059
060    /**
061     * Weave classes in target directory.
062     */
063    public void weave() {
064        if (!target.exists()) {
065            log.warning("Target directory " + target + " does not exist; nothing to do!");
066        }
067        for (final Weaver weaver : providers) {
068            final WeaveEnvironment env = new LocalWeaveEnvironment(target, classLoader, configuration,
069                Logger.getLogger(weaver.getClass().getName()));
070            weaver.process(env, finder);
071        }
072    }
073}