/*
    * #%L
    * Native ARchive plugin for Maven
    * %%
    * Copyright (C) 2002 - 2014 NAR Maven Plugin developers.
    * %%
    * 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.
   * #L%
   */
  package com.github.maven_nar.cpptasks.ibm;
  
  import java.util.Vector;
  
  import com.github.maven_nar.cpptasks.CCTask;
  import com.github.maven_nar.cpptasks.compiler.LinkType;
  import com.github.maven_nar.cpptasks.compiler.Linker;
  import com.github.maven_nar.cpptasks.gcc.AbstractLdLinker;
  import com.github.maven_nar.cpptasks.gcc.GccLibrarian;
  
  /**
   * Adapter for IBM(r) Visual Age(tm) Linker for AIX(tm)
   *
   * @author Curt Arnold
   */
  public final class VisualAgeLinker extends AbstractLdLinker {
    private static final String[] discardFiles = new String[] {};
    private static final String[] objFiles = new String[] {
        ".o", ".a", ".lib", ".dll", ".so", ".sl"
    };
    private static final VisualAgeLinker dllLinker = new VisualAgeLinker("xlC", objFiles, discardFiles, "lib", ".a");
    private static final VisualAgeLinker instance = new VisualAgeLinker("xlC", objFiles, discardFiles, "", "");
  
    public static VisualAgeLinker getInstance() {
      return instance;
    }
  
    private VisualAgeLinker(final String command, final String[] extensions, final String[] ignoredExtensions,
        final String outputPrefix, final String outputSuffix) {
      //
      // just guessing that -? might display something useful
      //
      super(command, "-?", extensions, ignoredExtensions, outputPrefix, outputSuffix, false, null);
    }
  
    @Override
    public void
        addImpliedArgs(final CCTask task, final boolean debug, final LinkType linkType, final Vector<String> args) {
      if (debug) {
        // args.addElement("-g");
      }
      if (linkType.isSharedLibrary()) {
        args.addElement("-qmkshrobj");
      }
    }
  
    @Override
    protected String getDynamicLibFlag() {
      return "-bdynamic";
    }
  
    /**
     * Gets identifier for the compiler.
     * 
     * Initial attempt at extracting version information
     * would lock up. Using a stock response.
     */
    @Override
    public String getIdentifier() {
      return "VisualAge linker - unidentified version";
    }
  
    @Override
    public Linker getLinker(final LinkType type) {
      if (type.isStaticLibrary()) {
        return GccLibrarian.getInstance();
      }
      if (type.isSharedLibrary()) {
        return dllLinker;
      }
      return instance;
    }
  
    @Override
    protected String getStaticLibFlag() {
      return "-bstatic";
    }
  
  }