Package com.alibaba.citrus.maven.eclipse.base.eclipse.writers

Source Code of com.alibaba.citrus.maven.eclipse.base.eclipse.writers.EclipseManifestWriter

/*
* 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.
*/

package com.alibaba.citrus.maven.eclipse.base.eclipse.writers;

import java.io.File;
import java.io.IOException;

import com.alibaba.citrus.maven.eclipse.base.eclipse.Constants;
import com.alibaba.citrus.maven.eclipse.base.eclipse.EclipseSourceDir;
import com.alibaba.citrus.maven.eclipse.base.eclipse.Messages;
import com.alibaba.citrus.maven.eclipse.base.ide.IdeUtils;
import com.alibaba.citrus.maven.eclipse.base.ide.JeeUtils;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.logging.Log;
import org.apache.maven.project.MavenProject;

/**
* Create or adapt the manifest files for the RAD6 runtime dependencys. attention these will not be used for the real
* ear these are just to get the runtime enviorment using the maven dependencies. WARNING: The manifest resources added
* here will not have the benefit of the dependencies of the project, since that's not provided in the setup() apis, one
* of the locations from which this writer is used in the RadPlugin.
*
* @author <a href="mailto:nir@cfc.at">Richard van Nieuwenhoven </a>
*/
public class EclipseManifestWriter
        extends AbstractEclipseManifestWriter {

    private static final String GENERATED_RESOURCE_DIRNAME =
            "target" + File.separatorChar + "generated-resources" + File.separatorChar + "eclipse";

    private static final String WEBAPP_RESOURCE_DIR =
            "src" + File.separatorChar + "main" + File.separatorChar + "webapp";

    /**
     * Returns absolute path to the web content directory based on configuration of the war plugin or default one
     * otherwise.
     *
     * @param project
     * @return absolute directory path as String
     * @throws MojoExecutionException
     */
    private static String getWebContentBaseDirectory(EclipseWriterConfig config)
            throws MojoExecutionException {
        // getting true location of web source dir from config
        File warSourceDirectory =
                new File(IdeUtils.getPluginSetting(config.getProject(), JeeUtils.ARTIFACT_MAVEN_WAR_PLUGIN,
                                                   "warSourceDirectory", WEBAPP_RESOURCE_DIR));
        // getting real and correct path to the web source dir
        String webContentDir =
                IdeUtils.toRelativeAndFixSeparator(config.getEclipseProjectDirectory(), warSourceDirectory, false);

        // getting the path to meta-inf base dir
        String result = config.getProject().getBasedir().getAbsolutePath() + File.separatorChar + webContentDir;

        return result;
    }

    /**
     * Search the project for the existing META-INF directory where the manifest should be located.
     *
     * @return the absolute path to the META-INF directory
     * @throws MojoExecutionException
     */
    protected String getMetaInfBaseDirectory(MavenProject project)
            throws MojoExecutionException {
        String metaInfBaseDirectory = null;

        if (this.config.getProject().getPackaging().equals(Constants.PROJECT_PACKAGING_WAR)) {

            // getting the path to meta-inf base dir
            metaInfBaseDirectory = getWebContentBaseDirectory(this.config);

            this.log.debug("Attempting to use: " + metaInfBaseDirectory + " for location of META-INF in war project.");

            File metaInfDirectoryFile =
                    new File(metaInfBaseDirectory + File.separatorChar + AbstractEclipseManifestWriter.META_INF_DIRECTORY);

            if (!metaInfDirectoryFile.exists()
                || (metaInfDirectoryFile.exists() && !metaInfDirectoryFile.isDirectory())) {
                metaInfBaseDirectory = null;
            }
        }

        for (int index = this.config.getSourceDirs().length - 1; metaInfBaseDirectory == null && index >= 0; index--) {

            File manifestFile =
                    new File(this.config.getEclipseProjectDirectory(), this.config.getSourceDirs()[index].getPath()
                                                                       + File.separatorChar + AbstractEclipseManifestWriter.META_INF_DIRECTORY + File.separatorChar
                                                                       + AbstractEclipseManifestWriter.MANIFEST_MF_FILENAME);

            this.log.debug("Checking for existence of META-INF/MANIFEST.MF file: " + manifestFile);

            if (manifestFile.exists()) {
                metaInfBaseDirectory = manifestFile.getParentFile().getParent();
            }
        }

        return metaInfBaseDirectory;
    }

    /**
     * make room for a Manifest file. use a generated resource for JARS and for WARS use the manifest in the
     * webapp/META-INF directory.
     *
     * @throws MojoExecutionException
     */
    public static void addManifestResource(Log log, EclipseWriterConfig config)
            throws MojoExecutionException {

        AbstractEclipseManifestWriter manifestWriter = new EclipseManifestWriter();
        manifestWriter.init(log, config);

        String packaging = config.getProject().getPackaging();

        String manifestDirectory = manifestWriter.getMetaInfBaseDirectory(config.getProject());

        if (!Constants.PROJECT_PACKAGING_EAR.equals(packaging)
            && !Constants.PROJECT_PACKAGING_WAR.equals(packaging) && manifestDirectory == null) {

            String generatedResourceDir =
                    config.getProject().getBasedir().getAbsolutePath() + File.separatorChar
                    + EclipseManifestWriter.GENERATED_RESOURCE_DIRNAME;

            manifestDirectory = generatedResourceDir + File.separatorChar + "META-INF";

            try {
                new File(manifestDirectory).mkdirs();
                File manifestFile = new File(manifestDirectory + File.separatorChar + "MANIFEST.MF");
                if (manifestFile.exists()) {
                    manifestFile.delete();
                }
                manifestFile.createNewFile();
            } catch (IOException e) {
                log.error(Messages.getString("EclipsePlugin.cantwritetofile", new Object[] { manifestDirectory
                                                                                             + File.separatorChar + "META-INF" + File.separatorChar + "MANIFEST.MF" }));
            }

            log.debug("Adding " + EclipseManifestWriter.GENERATED_RESOURCE_DIRNAME + " to eclipse sources ");

            EclipseSourceDir[] sourceDirs = config.getSourceDirs();
            EclipseSourceDir[] newSourceDirs = new EclipseSourceDir[sourceDirs.length + 1];
            System.arraycopy(sourceDirs, 0, newSourceDirs, 0, sourceDirs.length);
            newSourceDirs[sourceDirs.length] =
                    new EclipseSourceDir(EclipseManifestWriter.GENERATED_RESOURCE_DIRNAME,
                                         null,
                                         true,
                                         false,
                                         null,
                                         null,
                                         false);
            config.setSourceDirs(newSourceDirs);
        }

        if (Constants.PROJECT_PACKAGING_WAR.equals(packaging)) {
            new File(getWebContentBaseDirectory(config) + File.separatorChar + "META-INF").mkdirs();
        }

        // special case must be done first because it can add stuff to the
        // classpath that will be
        // written by the superclass
        manifestWriter.write();
    }
}
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