Package org.apache.cxf.maven_plugin

Source Code of org.apache.cxf.maven_plugin.WSDL2JavaMojo

/**
* 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 org.apache.cxf.maven_plugin;

import java.io.File;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;

import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.tools.common.ToolContext;
import org.apache.cxf.tools.wsdlto.WSDLToJava;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.InvalidRepositoryException;
import org.apache.maven.artifact.factory.ArtifactFactory;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryFactory;
import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
import org.apache.maven.artifact.resolver.ArtifactResolutionException;
import org.apache.maven.artifact.resolver.ArtifactResolver;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.ProjectUtils;

/**
* @goal wsdl2java
* @phase generate-sources
* @description CXF WSDL To Java Tool
* @requiresDependencyResolution test
*/
public class WSDL2JavaMojo extends AbstractMojo {

    /**
     * @parameter expression="${cxf.testSourceRoot}"
     */
    File testSourceRoot;

    /**
     * Path where the generated sources should be placed
     *
     * @parameter expression="${cxf.sourceRoot}"
     *            default-value="${project.build.directory}/generated-sources/cxf"
     * @required
     */
    File sourceRoot;

    /**
     * @parameter expression="${project.build.outputDirectory}"
     * @required
     */
    String classesDirectory;

    /**
     * @parameter expression="${project}"
     * @required
     */
    MavenProject project;

    /**
     * Default options to be used when a wsdl has not had it's options explicitly specified.
     *
     * @parameter
     */
    Option defaultOptions = new Option();

    /**
     * @parameter
     */
    WsdlOption wsdlOptions[];

    /**
     * @parameter expression="${cxf.wsdlRoot}" default-value="${basedir}/src/main/resources/wsdl"
     */
    File wsdlRoot;

    /**
     * @parameter expression="${cxf.testWsdlRoot}" default-value="${basedir}/src/test/resources/wsdl"
     */
    File testWsdlRoot;

    /**
     * Directory in which the "DONE" markers are saved that
     *
     * @parameter expression="${cxf.markerDirectory}"
     *            default-value="${project.build.directory}/cxf-codegen-plugin-markers"
     */
    File markerDirectory;

    /**
     * Use the compile classpath rather than the test classpath for execution useful if the test dependencies
     * clash with those of wsdl2java
     *
     * @parameter expression="${cxf.useCompileClasspath}" default-value="false"
     */
    boolean useCompileClasspath;
   
   
    /**
     * Disables the scanning of the wsdlRoot/testWsdlRoot directories configured above.
     * By default, we scan for *.wsdl (see include/exclude params as well) in the wsdlRoot
     * directories and run wsdl2java on all the wsdl's we find.    This disables that scan
     * and requires an explicit wsdlOption to be set for each wsdl that needs to be processed.
     * @parameter expression="${cxf.disableDirectoryScan}" default-value="false"
     */
    boolean disableDirectoryScan;

    /**
     * By default all maven dependencies of type "wsdl" are added to the effective wsdlOptions. Setting this
     * parameter to true disables this functionality
     *
     * @parameter expression="${cxf.disableDependencyScan}" default-value="false"
     */
    boolean disableDependencyScan;

    /**
     * A list of wsdl files to include. Can contain ant-style wildcards and double wildcards. Defaults to
     * *.wsdl
     *
     * @parameter
     */
    String includes[];

    /**
     * A list of wsdl files to exclude. Can contain ant-style wildcards and double wildcards.
     *
     * @parameter
     */
    String excludes[];

    /**
     * The local repository taken from Maven's runtime. Typically $HOME/.m2/repository.
     *
     * @parameter expression="${localRepository}"
     * @readonly
     * @required
     */
    private ArtifactRepository localRepository;

    /**
     * Artifact factory, needed to create artifacts.
     *
     * @component
     * @readonly
     * @required
     */
    private ArtifactFactory artifactFactory;

    /**
     * The remote repositories used as specified in your POM.
     *
     * @parameter expression="${project.repositories}"
     * @readonly
     * @required
     */
    private List repositories;

    /**
     * Artifact repository factory component.
     *
     * @component
     * @readonly
     * @required
     */
    private ArtifactRepositoryFactory artifactRepositoryFactory;

    /**
     * The Maven session.
     *
     * @parameter expression="${session}"
     * @readonly
     * @required
     */
    private MavenSession mavenSession;

    /**
     * @component
     * @readonly
     * @required
     */
    private ArtifactResolver artifactResolver;



    /**
     * Merge WsdlOptions that point to the same file by adding the extraargs to the first option and deleting
     * the second from the options list
     *
     * @param options
     */
    private void mergeOptions(List<WsdlOption> effectiveWsdlOptions) {
        if (wsdlOptions == null) {
            return;
        }
        File outputDirFile = testSourceRoot == null ? sourceRoot : testSourceRoot;
        for (WsdlOption o : wsdlOptions) {
            if (defaultOptions != null) {
                o.merge(defaultOptions);
            }
            if (o.getOutputDir() == null) {
                o.setOutputDir(outputDirFile);
            }

            File file = o.getWsdlFile(project.getBasedir());
            if (file != null && file.exists()) {
                file = file.getAbsoluteFile();
                for (WsdlOption o2 : effectiveWsdlOptions) {
                    File file2 = o2.getWsdlFile(project.getBasedir());
                    if (file2 != null && file2.exists() && file2.getAbsoluteFile().equals(file)) {
                        o.getExtraargs().addAll(0, o2.getExtraargs());
                        effectiveWsdlOptions.remove(o2);
                        break;
                    }
                }
            }
            effectiveWsdlOptions.add(o);
        }
    }

    /**
     * @return effective WsdlOptions
     * @throws MojoExecutionException
     */
    private List<WsdlOption> createWsdlOptionsFromScansAndExplicitWsdlOptions()
        throws MojoExecutionException {
        List<WsdlOption> effectiveWsdlOptions = new ArrayList<WsdlOption>();
        List<WsdlOption> temp;
        if (wsdlRoot != null && wsdlRoot.exists() && !disableDirectoryScan) {
            temp = WsdlOptionLoader.loadWsdlOptionsFromFiles(wsdlRoot, includes, excludes, defaultOptions,
                                                             sourceRoot);
            effectiveWsdlOptions.addAll(temp);
        }
        if (testWsdlRoot != null && testWsdlRoot.exists() && !disableDirectoryScan) {
            temp = WsdlOptionLoader.loadWsdlOptionsFromFiles(testWsdlRoot, includes, excludes,
                                                             defaultOptions, testSourceRoot);
            effectiveWsdlOptions.addAll(temp);
        }
        if (!disableDependencyScan) {
            temp = WsdlOptionLoader.loadWsdlOptionsFromDependencies(project, defaultOptions, sourceRoot);
            effectiveWsdlOptions.addAll(temp);
        }
        mergeOptions(effectiveWsdlOptions);
        downloadRemoteWsdls(effectiveWsdlOptions);
//        String buildDir = project.getBuild().getDirectory();
//        File tempBindingDir = new File(buildDir, TEMPBINDINGS_DIR);
//        for (WsdlOption o : effectiveWsdlOptions) {
//            BindingFileHelper.setWsdlLocationInBindingsIfNotSet(project.getBasedir(), tempBindingDir, o,
//                                                                getLog());
//        }
        return effectiveWsdlOptions;
    }
   
    @SuppressWarnings("unchecked")
    private Artifact resolveRemoteWsdlArtifact(List remoteRepos, Artifact artifact)
        throws MojoExecutionException {
       
        /**
         * First try to find the artifact in the reactor projects of the maven session.
         * So an artifact that is not yet built can be resolved
         */
        List<MavenProject> rProjects = mavenSession.getSortedProjects();
        for (MavenProject rProject : rProjects) {
            if (artifact.getGroupId().equals(rProject.getGroupId())
                && artifact.getArtifactId().equals(rProject.getArtifactId())
                && artifact.getVersion().equals(rProject.getVersion())) {
                Set<Artifact> artifacts = rProject.getArtifacts();
                for (Artifact pArtifact : artifacts) {
                    if ("wsdl".equals(pArtifact.getType())) {
                        return pArtifact;
                    }
                }
            }
        }
       
        /**
         * If this did not work resolve the artifact using the artifactResolver
         */
        try {
            artifactResolver.resolve(artifact, remoteRepos, localRepository);
        } catch (ArtifactResolutionException e) {
            throw new MojoExecutionException("Error downloading wsdl artifact.", e);
        } catch (ArtifactNotFoundException e) {
            throw new MojoExecutionException("Resource can not be found.", e);
        }
       
        return artifact;
    }

    private void downloadRemoteWsdls(List<WsdlOption> effectiveWsdlOptions) throws MojoExecutionException {
        List remoteRepos;
        try {
            remoteRepos = ProjectUtils.buildArtifactRepositories(repositories, artifactRepositoryFactory,
                                                                 mavenSession.getContainer());
        } catch (InvalidRepositoryException e) {
            throw new MojoExecutionException("Error build repositories for remote wsdls", e);
        }
       
        for (WsdlOption wsdlOption : effectiveWsdlOptions) {
            WsdlArtifact wsdlA = wsdlOption.getWsdlArtifact();
            if (wsdlA == null) {
                return;
            }
            Artifact wsdlArtifact = artifactFactory.createArtifact(wsdlA.getGroupId(), wsdlA.getArtifactId(),
                                                                   wsdlA.getVersion(),
                                                                   Artifact.SCOPE_COMPILE, wsdlA.getType());
            wsdlArtifact = resolveRemoteWsdlArtifact(remoteRepos, wsdlArtifact);
            if (wsdlArtifact != null) {
                String path = wsdlArtifact.getFile().getAbsolutePath();
                getLog().info("Resolved WSDL artifact to file " + path);
                wsdlOption.setWsdl(path);
            }
        }
    }

    public void execute() throws MojoExecutionException {
        if (includes == null) {
            includes = new String[] {
                "*.wsdl"
            };
        }
        defaultOptions.addDefaultBindingFileIfExists(project.getBasedir());
        File classesDir = new File(classesDirectory);
        classesDir.mkdirs();
        markerDirectory.mkdirs();

        List<WsdlOption> effectiveWsdlOptions = createWsdlOptionsFromScansAndExplicitWsdlOptions();

        if (effectiveWsdlOptions.size() == 0) {
            getLog().info("Nothing to generate");
            return;
        }

        ClassLoaderSwitcher classLoaderSwitcher = new ClassLoaderSwitcher(getLog());
        boolean result = true;

        try {
            classLoaderSwitcher.switchClassLoader(project, useCompileClasspath, classesDir);

            for (WsdlOption o : effectiveWsdlOptions) {
                callWsdl2Java(o);

                File dirs[] = o.getDeleteDirs();
                if (dirs != null) {
                    for (int idx = 0; idx < dirs.length; ++idx) {
                        result = result && deleteDir(dirs[idx]);
                    }
                }
            }
        } finally {
            // cleanup as much as we can.
            Bus bus = BusFactory.getDefaultBus(false);
            if (bus != null) {
                bus.shutdown(true);
            }
            classLoaderSwitcher.restoreClassLoader();
            org.apache.cxf.tools.wsdlto.core.PluginLoader.unload();
        }
        if (project != null && sourceRoot != null && sourceRoot.exists()) {
            project.addCompileSourceRoot(sourceRoot.getAbsolutePath());
        }
        if (project != null && testSourceRoot != null && testSourceRoot.exists()) {
            project.addTestCompileSourceRoot(testSourceRoot.getAbsolutePath());
        }

        System.gc();
    }

    private void callWsdl2Java(WsdlOption wsdlOption) throws MojoExecutionException {
        File outputDirFile = wsdlOption.getOutputDir();
        outputDirFile.mkdirs();
        URI basedir = project.getBasedir().toURI();
        URI wsdlURI = wsdlOption.getWsdlURI(basedir);
        File doneFile = getDoneFile(basedir, wsdlURI);

        if (!shouldRun(wsdlOption, doneFile, wsdlURI)) {
            return;
        }
       
        doneFile.delete();
        List<String> list = wsdlOption.generateCommandLine(outputDirFile, basedir, wsdlURI, getLog()
            .isDebugEnabled());
        String[] args = (String[])list.toArray(new String[list.size()]);
        getLog().debug("Calling wsdl2java with args: " + Arrays.toString(args));
        try {
            new WSDLToJava(args).run(new ToolContext());
        } catch (Throwable e) {
            getLog().debug(e);
            throw new MojoExecutionException(e.getMessage(), e);
        }
        try {
            doneFile.createNewFile();
        } catch (Throwable e) {
            getLog().warn("Could not create marker file " + doneFile.getAbsolutePath());
            getLog().debug(e);
        }
    }

    private File getDoneFile(URI basedir, URI wsdlURI) {
        String doneFileName = wsdlURI.toString();
       
        // Strip the basedir from the doneFileName
        if (doneFileName.startsWith(basedir.toString())) {
            doneFileName = doneFileName.substring(basedir.toString().length());
        }

        // If URL to WSDL, replace ? and & since they're invalid chars for file names
        // Not to mention slashes.
        doneFileName = doneFileName.replace('?', '_').replace('&', '_').replace('/', '_').replace('\\', '_')
            .replace(':', '_');

        return new File(markerDirectory, "." + doneFileName + ".DONE");
    }

    /**
     * Determine if code should be generated from the given wsdl
     *
     * @param wsdlOption
     * @param doneFile
     * @param wsdlURI
     * @return
     */
    private boolean shouldRun(WsdlOption wsdlOption, File doneFile, URI wsdlURI) {
        long timestamp = 0;
        if ("file".equals(wsdlURI.getScheme())) {
            timestamp = new File(wsdlURI).lastModified();
        } else {
            try {
                timestamp = wsdlURI.toURL().openConnection().getDate();
            } catch (Exception e) {
                // ignore
            }
        }
        boolean doWork = false;
        if (!doneFile.exists()) {
            doWork = true;
        } else if (timestamp > doneFile.lastModified()) {
            doWork = true;
        } else if (wsdlOption.isDefServiceName()) {
            doWork = true;
        } else {
            File files[] = wsdlOption.getDependencies();
            if (files != null) {
                for (int z = 0; z < files.length; ++z) {
                    if (files[z].lastModified() > doneFile.lastModified()) {
                        doWork = true;
                    }
                }
            }
        }
        return doWork;
    }

    /**
     * Recursively delete the given directory
     *
     * @param f
     * @return
     */
    private boolean deleteDir(File f) {
        if (f.isDirectory()) {
            File files[] = f.listFiles();
            for (int idx = 0; idx < files.length; ++idx) {
                deleteDir(files[idx]);
            }
        }

        if (f.exists()) {
            return f.delete();
        }

        return true;
    }

}
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