ProjectId.java

/*
 * 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.codehaus.mojo.pom;

import org.apache.maven.model.Dependency;
import org.apache.maven.project.MavenProject;

/**
 * TODO
 * 
 * @author joerg
 */
public class ProjectId {

  /** @see #getGroupId() */
  private final String groupId;

  /** @see #getArtifactId() */
  private final String artifactId;

  /**
   * @param project
   */
  public ProjectId(MavenProject project) {

    this(project.getGroupId(), project.getArtifactId());
  }

  /**
   * @param groupId
   * @param artifactId
   */
  public ProjectId(String groupId, String artifactId) {

    super();
    this.groupId = groupId;
    this.artifactId = artifactId;
  }

  /**
   * @return the groupId
   */
  public String getGroupId() {

    return this.groupId;
  }

  /**
   * @return the artifactId
   */
  public String getArtifactId() {

    return this.artifactId;
  }

  public boolean isMatching(String groupId, String artifactId, String version, String type,
      String scope, String classifier) {

    if ((this.groupId == null) || (groupId == null) || (this.groupId.equals(groupId))) {
      if ((this.artifactId == null) || (artifactId == null) || (this.artifactId.equals(artifactId))) {
        return true;
      }
    }
    return false;
  }

  /**
   * @see #equals(Object)
   */
  public final boolean isMatching(Dependency dependency) {

    return isMatching(dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion(),
        dependency.getType(), dependency.getScope(), dependency.getClassifier());
  }

  /**
   * @see #equals(Object)
   */
  public final boolean isMatching(MavenProject dependency) {

    return isMatching(dependency.getGroupId(), dependency.getArtifactId(), dependency.getVersion(),
        dependency.getPackaging(), null, null);
  }

  public boolean isEmpty() {

    if (this.groupId != null) {
      return false;
    }
    if (this.artifactId != null) {
      return false;
    }
    return true;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public boolean equals(Object other) {

    if (other == null) {
      return false;
    }
    if (other.getClass() != ProjectId.class) {
      return false;
    }
    ProjectId pid = (ProjectId) other;
    if (this.groupId == null) {
      if (pid.groupId != null) {
        return false;
      }
    } else if (!this.groupId.equals(pid.groupId)) {
      return false;
    }
    if (this.artifactId == null) {
      if (pid.artifactId != null) {
        return false;
      }
    } else if (!this.artifactId.equals(pid.artifactId)) {
      return false;
    }
    return true;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public int hashCode() {

    int hash = 0;
    if (this.groupId != null) {
      hash = this.groupId.hashCode();
    }
    if (this.artifactId != null) {
      hash = hash + this.artifactId.hashCode();
    }
    return hash;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public String toString() {

    StringBuilder sb = new StringBuilder();
    toString(sb);
    return sb.toString();
  }

  public void toString(StringBuilder sb) {

    sb.append(this.groupId);
    sb.append(':');
    sb.append(this.artifactId);
  }

}