com.google.dart.util.UnpackUtil.java Source code

Introduction

Here is the source code for com.google.dart.util.UnpackUtil.java

Source

package com.google.dart.util;

/*
 * 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.io.File;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.logging.Log;
import org.codehaus.plexus.archiver.UnArchiver;
import org.codehaus.plexus.archiver.manager.ArchiverManager;
import org.codehaus.plexus.archiver.manager.NoSuchArchiverException;

/**
 * @author Daniel Zwicker
 */
public class UnpackUtil {

    public static void unpack(final File file, final File location, final Log logger,
            final ArchiverManager archiverManager) throws NoSuchArchiverException, MojoExecutionException {

        logUnpack(file, location, logger);

        location.mkdirs();

        if (file.isDirectory()) {
            // usual case is a future jar packaging, but there are special cases: classifier and other packaging
            throw new MojoExecutionException("Artifact has not been packaged yet. When used on reactor artifact, "
                    + "unpack should be executed after packaging: see MDEP-98.");
        }

        final UnArchiver unArchiver = archiverManager.getUnArchiver(file);
        unArchiver.setSourceFile(file);
        unArchiver.setDestDirectory(location);
        unArchiver.extract();

        logUnpackDone(file, location, logger);
    }

    private static void logUnpack(final File file, final File location, final Log logger) {
        if (!logger.isInfoEnabled()) {
            return;
        }

        final StringBuffer msg = new StringBuffer();
        msg.append("Unpacking ");
        msg.append(file);
        msg.append(" to ");
        msg.append(location);

        logger.info(msg.toString());
    }

    private static void logUnpackDone(final File file, final File location, final Log logger) {
        if (!logger.isInfoEnabled()) {
            return;
        }

        final StringBuffer msg = new StringBuffer();
        msg.append("Unpacked ");
        msg.append(file);
        msg.append(" to ");
        msg.append(location);

        logger.info(msg.toString());
    }

}