com.github.fritaly.svngraph.RevisionPath.java Source code

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Here is the source code for com.github.fritaly.svngraph.RevisionPath.java

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/*
 * 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 com.github.fritaly.svngraph;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;

public final class RevisionPath implements Comparable<RevisionPath> {

    private final String path;

    private final long revision;

    RevisionPath(String path, long revision) {
        this.path = path;
        this.revision = revision;
    }

    public String getPath() {
        return path;
    }

    public long getRevision() {
        return revision;
    }

    @Override
    public int compareTo(RevisionPath other) {
        if (!this.path.equals(other.path)) {
            // compare first on the path
            return this.path.compareTo(other.path);
        }

        // then the revision
        final long delta = this.revision - other.revision;

        return (delta < 0) ? -1 : (delta > 0) ? +1 : 0;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (obj == this) {
            return true;
        }
        if (obj instanceof RevisionPath) {
            final RevisionPath other = (RevisionPath) obj;

            return (this.revision == other.revision) && StringUtils.equals(this.path, other.path);
        }

        return false;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("path", path)
                .append("revision", revision).toString();
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder(11, 31).append(path).append(revision).toHashCode();
    }
}