com.aliyun.android.oss.task.PostObjectGroupTask.java Source code

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Here is the source code for com.aliyun.android.oss.task.PostObjectGroupTask.java

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/**
 * Copyright (c) 2012 The Wiseserc. All rights reserved. Use of this source code
 * is governed by a BSD-style license that can be found in the LICENSE file.
 */
package com.aliyun.android.oss.task;

import java.io.IOException;
import java.io.UnsupportedEncodingException;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.StringEntity;
import org.xmlpull.v1.XmlPullParserException;

import android.util.Log;

import com.aliyun.android.oss.OSSErrorCode;
import com.aliyun.android.oss.OSSException;
import com.aliyun.android.oss.http.HttpMethod;
import com.aliyun.android.oss.http.OSSHttpTool;
import com.aliyun.android.oss.model.OSSObjectSummary;
import com.aliyun.android.oss.model.ObjectGroup;
import com.aliyun.android.oss.model.ObjectGroupMetaData;
import com.aliyun.android.oss.xmlparser.PostObjectGroupXmlParser;
import com.aliyun.android.oss.xmlserializer.PartsXmlSerializer;
import com.aliyun.android.util.Helper;

/**
 * Post Object Group????Object?OSS?Object Group
 * ?Object GroupObject Name,E-tag?ObjectGroup? Part
 * IDXML??OSS
 * 
 * @author Harttle
 */
public class PostObjectGroupTask extends Task {

    /**
     * ?ObjectGroup
     */
    private ObjectGroup objectGroup;

    /**
     * ?ObjectGroupMeta
     */
    private ObjectGroupMetaData objectGroupMetaData;

    /** * @param httpMethod */
    public PostObjectGroupTask(ObjectGroup objectGroup) {
        super(HttpMethod.POST);
        this.objectGroup = objectGroup;
        super.httpTool.setGroup(true);
    }

    /**
     * FileGroupXml * @return xml
     */
    private String generateHttpEntity() {
        PartsXmlSerializer serializer = new PartsXmlSerializer("CreateFileGroup");
        return serializer.serialize(objectGroup.getParts());
    }

    /* (non-Javadoc) * @see com.aliyun.android.oss.task.Task#checkArguments() */
    @Override
    protected void checkArguments() {

        if (Helper.isEmptyString(objectGroup.getBucketName()) || Helper.isEmptyString(objectGroup.getName())) {
            throw new IllegalArgumentException("bucketName or objectKey not set");
        }
        if (objectGroup.getParts() == null || objectGroup.getParts().isEmpty()) {
            throw new IllegalArgumentException("partList not set");
        }
    }

    /**
     * HttpPut
     */
    protected HttpUriRequest generateHttpRequest() {
        // ?Http
        String requestUri = this.getOSSEndPoint()
                + httpTool.generateCanonicalizedResource("/" + objectGroup.getName());
        ;
        HttpPut httpPut = new HttpPut(requestUri);

        // HttpPut
        String resource = httpTool
                .generateCanonicalizedResource("/" + objectGroup.getBucketName() + "/" + objectGroup.getName());
        String authorization = OSSHttpTool.generateAuthorization(accessId, accessKey, httpMethod.toString(), "",
                objectGroupMetaData.getContentType(), Helper.getGMTDate(),
                OSSHttpTool.generateCanonicalizedHeader(objectGroupMetaData.getAttrs()), resource);

        httpPut.setHeader(AUTHORIZATION, authorization);
        httpPut.setHeader(DATE, Helper.getGMTDate());
        httpPut.setHeader(HOST, OSS_HOST);

        try {
            httpPut.setEntity(new StringEntity(generateHttpEntity()));
        } catch (UnsupportedEncodingException e) {
            Log.e(this.getClass().getName(), e.getMessage());
        }

        return httpPut;
    }

    /**
     * ?Post??{@link OSSObjectSummary} ??
     * <ul>
     * <li>Bucket: ObjectBucket??</li>
     * <li>Key: ObjectKey</li>
     * <li>Size: Object?</li>
     * <li>ETag: ObjectETag</li>
     * </ul>
     * 
     * @return
     * @throws OSSException
     */
    public OSSObjectSummary getResult() throws OSSException {
        try {
            HttpResponse r = this.execute();
            return new PostObjectGroupXmlParser().parse(r.getEntity().getContent());
        } catch (OSSException osse) {
            throw osse;
        } catch (XmlPullParserException xe) {
            OSSException ossException = new OSSException(xe);
            ossException.setErrorCode(OSSErrorCode.PARSE_XML_ERROR);
            throw ossException;
        } catch (IOException ioe) {
            OSSException ossException = new OSSException(ioe);
            ossException.setErrorCode(OSSErrorCode.GET_ENTITY_CONTENT_ERROR);
            throw ossException;
            //        } catch (Exception e) {
            //            throw new OSSException(e);
        } finally {
            this.releaseHttpClient();
        }
    }
}