/*
    * 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.maven.shared.jar;
  
  import java.io.File;
  import java.util.Collections;
  import java.util.List;
  import java.util.jar.Attributes;
  import java.util.jar.Attributes.Name;
  import java.util.jar.JarEntry;
  import java.util.jar.Manifest;
  
  import org.apache.maven.shared.jar.classes.JarClasses;
  import org.apache.maven.shared.jar.classes.JarVersionedRuntimes;
  import org.apache.maven.shared.jar.identification.JarIdentification;
  
  /**
   * Class that contains details of a single JAR file and it's entries.
   */
  public final class JarData {
  
      private static final Name ATTR_MULTI_RELEASE = new Attributes.Name("Multi-Release");
  
      /**
       * The JAR file.
       */
      private final File file;
  
      /**
       * Whether the JAR file is sealed.
       */
      private final boolean aSealed;
  
      /**
       * Whether the JAR file is Multi-Release.
       */
      private boolean multiRelease;
  
      /**
       * The hashcode for the entire file's contents.
       */
      private String fileHash;
  
      /**
       * The hashcode for the file's class data contents.
       */
      private String bytecodeHash;
  
      /**
       * The JAR's manifest.
       */
      private final Manifest manifest;
  
      /**
       * Information about the JAR's classes.
       */
      private JarClasses jarClasses;
  
      /**
       * The JAR entries.
       */
      private final List<JarEntry> entries;
  
      /**
       * Information about the JAR's identifying features.
       */
      private JarIdentification jarIdentification;
  
      /**
       * Information about the JAR's Multi-Release entries
       */
      private JarVersionedRuntimes versionedRuntimes;
  
      /**
       * Constructor.
       *
       * @param file     the JAR file
       * @param manifest the JAR manifest
       * @param entries  the JAR entries
       */
      public JarData(File file, Manifest manifest, List<JarEntry> entries) {
          this.file = file;
  
         this.manifest = manifest;
 
         this.entries = Collections.unmodifiableList(entries);
 
         this.aSealed = isAttributePresent(Attributes.Name.SEALED);
         this.multiRelease = isAttributePresent(ATTR_MULTI_RELEASE);
     }
 
     public List<JarEntry> getEntries() {
         return entries;
     }
 
     public Manifest getManifest() {
         return manifest;
     }
 
     public File getFile() {
         return file;
     }
 
     public boolean isSealed() {
         return aSealed;
     }
 
     public boolean isMultiRelease() {
         return multiRelease;
     }
 
     public void setFileHash(String fileHash) {
         this.fileHash = fileHash;
     }
 
     public String getFileHash() {
         return fileHash;
     }
 
     public void setBytecodeHash(String bytecodeHash) {
         this.bytecodeHash = bytecodeHash;
     }
 
     public String getBytecodeHash() {
         return bytecodeHash;
     }
 
     public boolean isDebugPresent() {
         return jarClasses.isDebugPresent();
     }
 
     public void setJarClasses(JarClasses jarClasses) {
         this.jarClasses = jarClasses;
     }
 
     public int getNumEntries() {
         return entries.size();
     }
 
     public int getNumClasses() {
         return jarClasses.getClassNames().size();
     }
 
     public int getNumPackages() {
         return jarClasses.getPackages().size();
     }
 
     public String getJdkRevision() {
         return jarClasses.getJdkRevision();
     }
 
     public void setJarIdentification(JarIdentification jarIdentification) {
         this.jarIdentification = jarIdentification;
     }
 
     public JarIdentification getJarIdentification() {
         return jarIdentification;
     }
 
     public JarClasses getJarClasses() {
         return jarClasses;
     }
 
     public void setVersionedRuntimes(JarVersionedRuntimes versionedRuntimess) {
         this.versionedRuntimes = versionedRuntimess;
     }
 
     public JarVersionedRuntimes getVersionedRuntimes() {
         return this.versionedRuntimes;
     }
 
     private boolean isAttributePresent(Attributes.Name attrName) {
         if (this.manifest != null) {
             String sval = this.manifest.getMainAttributes().getValue(attrName);
             return sval != null && "true".equalsIgnoreCase(sval.trim());
         }
         return false;
     }
 }