AOL.java

/*
 * #%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;

/**
 * @author Mark Donszelmann
 * @version $Id$
 */
public class AOL {

  private String architecture;

  private String os;

  private String linkerName;

  // FIXME, need more complicated parsing for numbers as part of os.
  public AOL(final String aol) {
    final int linkerIndex = 2;
    final int osIndex = 1;
    final int architectureIndex = 0;

    final String[] aolString = aol.split("-", linkerIndex + 1);
    switch (aolString.length) {
      case linkerIndex + 1:
        this.linkerName = aolString[linkerIndex];
      case osIndex + 1:
        this.os = aolString[osIndex];
      case architectureIndex + 1:
        this.architecture = aolString[architectureIndex];
        break;

      default:
        throw new IllegalArgumentException("AOL '" + aol + "' cannot be parsed.");
    }
  }

  public AOL(final String architecture, final String os, final String linkerName) {
    this.architecture = architecture;
    this.os = os;
    this.linkerName = linkerName;
  }

  /**
   * Returns an AOL key (arch.os.linker) to search in the properties files.
   * 
   * @return dot separated AOL
   */
  public final String getKey() {
    String tempLinkerName = null;
    if (this.linkerName == null) {
      tempLinkerName = "";
    } else if (this.linkerName.equals("g++")) {
      tempLinkerName = ".gpp";
    } else {
      tempLinkerName = "." + this.linkerName;
    }

    return this.architecture + (this.os == null ? "" : "." + this.os + tempLinkerName);
  }

  final String getOS() {
    return this.os;
  }

  // FIXME, maybe change to something like isCompatible (AOL).
  public final boolean hasLinker(final String linker) {
    return this.linkerName.equals(linker);
  }

  /**
   * Returns an AOL string (arch-os-linker) to use as directory or file.
   * 
   * @return dash separated AOL
   */
  @Override
  public final String toString() {
    String tempLinkerName = null;
    if (this.linkerName == null) {
      tempLinkerName = "";
    } else if (this.linkerName.equals("g++")) {
      tempLinkerName = "-gpp";
    } else {
      tempLinkerName = "-" + this.linkerName;
    }

    return this.architecture + (this.os == null ? "" : "-" + this.os + tempLinkerName);
  }
}