org.jets3t.service.model.MultipartPart Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jets3t Show documentation
Toolkit for Amazon S3, Amazon CloudFront, and Google Storage Service.
There is a newer version: 0.9.4
/*
 * JetS3t : Java S3 Toolkit
 * Project hosted at http://bitbucket.org/jmurty/jets3t/
 *
 * Copyright 2010 James Murty
 *
 * 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.
 */
package org.jets3t.service.model;

import java.util.Arrays;
import java.util.Comparator;
import java.util.Date;


/**
 * Represents a Part of a MultipartUpload operation.
 *
 * @author James Murty
 */
public class MultipartPart {
    private final Integer partNumber;
    private final Date lastModified;
    private final String etag;
    private final Long size;

    public MultipartPart(Integer partNumber, Date lastModified, String etag, Long size)
    {
        if (partNumber == null){
            throw new IllegalArgumentException("Null part number not allowed.");
        }
        if (lastModified == null){
            throw new IllegalArgumentException("Null last modified not allowed.");
        }
        if (etag == null){
            throw new IllegalArgumentException("Null etag not allowed.");
        }
        if (size == null){
            throw new IllegalArgumentException("Null size not allowed.");
        }
        this.partNumber = partNumber;
        this.lastModified = lastModified;
        this.size = size;
        // Strip quote characters from etag value
        this.etag = etag.replaceAll("\"", "");
    }

    @Override
    public boolean equals(Object other) {
        if (other == this) {
            return true;
        }
        if (other instanceof MultipartPart) {
            MultipartPart p = (MultipartPart) other;
            return Arrays.equals(
                    new Object[]{ partNumber, lastModified, size},
                    new Object[]{ p.partNumber, p.lastModified, p.size} ) &&
                    sameEtag(p.etag);
        }
        return false;
    }

    private boolean sameEtag(String pEtag){
        if (etag == null){
            return false;
        }
        if (etag.equals(pEtag)){
            return true;
        }
        return ("\""+etag+"\"").equals(pEtag);
    }

    @Override
    public String toString() {
        return this.getClass().getName() + " ["
            + "partNumber=" + getPartNumber()
            + ", lastModified=" + getLastModified()
            + ", etag=" + getEtag()
            + ", size=" + getSize()
            + "]";
    }

    public String getEtag() {
        return etag;
    }

    public Long getSize() {
        return size;
    }

    public Integer getPartNumber() {
        return partNumber;
    }

    public Date getLastModified() {
        return lastModified;
    }

    public static class PartNumberComparator implements Comparator {
        public int compare(MultipartPart o1, MultipartPart o2){
            if (o1 == o2){
                return 0;
            }
            if (o1 == null) {
                return -1;
            }
            if (o2 == null) {
                return 1;
            }
            return o1.getPartNumber().compareTo(o2.getPartNumber());
        }
    } //PartNumberComparator
}