plugins/maven/src/main/java/org/jetbrains/idea/maven/dom/MavenPluginDomUtil.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed 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.jetbrains.idea.maven.dom;

import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.JarFileSystem;
import com.intellij.openapi.vfs.LocalFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.xml.DomElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.idea.maven.dom.model.MavenDomConfiguration;
import org.jetbrains.idea.maven.dom.model.MavenDomPlugin;
import org.jetbrains.idea.maven.dom.plugin.MavenDomPluginModel;
import org.jetbrains.idea.maven.project.MavenProjectsManager;
import org.jetbrains.idea.maven.utils.MavenArtifactUtil;

import java.io.File;

public class MavenPluginDomUtil {
  @Nullable
  public static MavenDomPluginModel getMavenPluginModel(DomElement element) {
    Project project = element.getManager().getProject();

    MavenDomPlugin pluginElement = element.getParentOfType(MavenDomPlugin.class, false);
    if (pluginElement == null) return null;

    String groupId = pluginElement.getGroupId().getStringValue();
    String artifactId = pluginElement.getArtifactId().getStringValue();
    String version = pluginElement.getVersion().getStringValue();

    return getMavenPluginModel(project, groupId, artifactId, version);
  }

  @Nullable
  public static MavenDomPluginModel getMavenPluginModel(Project project, String groupId, String artifactId, String version) {
    VirtualFile pluginXmlFile = getPluginXmlFile(project, groupId, artifactId, version);
    if (pluginXmlFile == null) return null;

    return MavenDomUtil.getMavenDomModel(project, pluginXmlFile, MavenDomPluginModel.class);
  }

  public static boolean isPlugin(@NotNull MavenDomConfiguration configuration, @Nullable String groupId, @NotNull String artifactId) {
    MavenDomPlugin domPlugin = configuration.getParentOfType(MavenDomPlugin.class, true);
    if (domPlugin == null) return false;

    return isPlugin(domPlugin, groupId, artifactId);
  }

  public static boolean isPlugin(@NotNull MavenDomPlugin plugin, @Nullable String groupId, @NotNull String artifactId) {
    if (!artifactId.equals(plugin.getArtifactId().getStringValue())) return false;

    String pluginGroupId = plugin.getGroupId().getStringValue();

    if (groupId == null) {
      return pluginGroupId == null || (pluginGroupId.equals("org.apache.maven.plugins") || pluginGroupId.equals("org.codehaus.mojo"));
    }

    if (pluginGroupId == null && (groupId.equals("org.apache.maven.plugins") || groupId.equals("org.codehaus.mojo"))) {
      return true;
    }

    return groupId.equals(pluginGroupId);
  }

  @Nullable
  private static VirtualFile getPluginXmlFile(Project project, String groupId, String artifactId, String version) {
    File file = MavenArtifactUtil.getArtifactFile(MavenProjectsManager.getInstance(project).getLocalRepository(),
                                                  groupId, artifactId, version, "jar");
    VirtualFile pluginFile = LocalFileSystem.getInstance().findFileByIoFile(file);
    if (pluginFile == null) return null;

    VirtualFile pluginJarRoot = JarFileSystem.getInstance().getJarRootForLocalFile(pluginFile);
    if (pluginJarRoot == null) return null;
    return pluginJarRoot.findFileByRelativePath(MavenArtifactUtil.MAVEN_PLUGIN_DESCRIPTOR);
  }
}