    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.commons.compress.harmony.pack200;
    020
    021import java.util.List;
    022
    023/**
    024 * Constant pool entry for a signature.
    025 */
    026public class CPSignature extends ConstantPoolEntry implements Comparable {
    027
    028    private final CPUTF8 signatureForm;
    029    private final List<CPClass> classes;
    030    private final String signature;
    031    private final boolean formStartsWithBracket;
    032
    033    public CPSignature(final String signature, final CPUTF8 signatureForm, final List<CPClass> classes) {
    034        this.signature = signature;
    035        this.signatureForm = signatureForm;
    036        this.classes = classes;
    037        formStartsWithBracket = signatureForm.toString().startsWith("(");
    038    }
    039
    040    @Override
    041    public int compareTo(final Object arg0) {
    042        if (signature.equals(((CPSignature) arg0).signature)) {
    043            return 0;
    044        }
    045        if (formStartsWithBracket && !((CPSignature) arg0).formStartsWithBracket) {
    046            return 1;
    047        }
    048        if (((CPSignature) arg0).formStartsWithBracket && !formStartsWithBracket) {
    049            return -1;
    050        }
    051        if (classes.size() - ((CPSignature) arg0).classes.size() != 0) {
    052            return classes.size() - ((CPSignature) arg0).classes.size();
    053        }
    054        if (classes.size() > 0) {
    055            for (int i = classes.size() - 1; i >= 0; i--) {
    056                final CPClass cpClass = classes.get(i);
    057                final CPClass compareClass = ((CPSignature) arg0).classes.get(i);
    058                final int classComp = cpClass.compareTo(compareClass);
    059                if (classComp != 0) {
    060                    return classComp;
    061                }
    062            }
    063        }
    064        return signature.compareTo(((CPSignature) arg0).signature);
    065    }
    066
    067    public List<CPClass> getClasses() {
    068        return classes;
    069    }
    070
    071    public int getIndexInCpUtf8() {
    072        return signatureForm.getIndex();
    073    }
    074
    075    public CPUTF8 getSignatureForm() {
    076        return signatureForm;
    077    }
    078
    079    public String getUnderlyingString() {
    080        return signature;
    081    }
    082
    083    @Override
    084    public String toString() {
    085        return signature;
    086    }
    087}