com.frand.easyandroid.http.FFHttpRequest.java Source code

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Here is the source code for com.frand.easyandroid.http.FFHttpRequest.java

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/*
 * Copyright (C) 2013 frandfeng
 *
 * 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 com.frand.easyandroid.http;

import java.io.File;
import java.io.IOException;
import java.net.ConnectException;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import java.net.UnknownHostException;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpRequestRetryHandler;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.AbstractHttpClient;
import org.apache.http.protocol.HttpContext;

import com.frand.easyandroid.log.FFLogger;

public class FFHttpRequest implements Runnable {
    private final AbstractHttpClient client;
    private final HttpContext context;
    private final HttpUriRequest request;
    private final FFHttpRespHandler responseHandler;
    private final int reqTag;
    private final String reqUrl;
    private int executionCount;

    public enum ReqType {
        PUT, GET, POST, DOWNLOAD, DELETE
    }

    public FFHttpRequest(AbstractHttpClient client, HttpContext context, HttpUriRequest request,
            FFHttpRespHandler responseHandler, int reqTag, String reqUrl) {
        this.client = client;
        this.context = context;
        this.request = request;
        this.responseHandler = responseHandler;
        this.reqTag = reqTag;
        this.reqUrl = reqUrl;
        if (responseHandler instanceof FFFileRespHandler) {
            FFFileRespHandler fileResponseHandler = (FFFileRespHandler) responseHandler;
            File tempFile = fileResponseHandler.getTempFile();
            if (tempFile.exists()) {
                long previousFileSize = tempFile.length();
                fileResponseHandler.setPreviousFileSize(previousFileSize);
                this.request.setHeader("RANGE", "bytes=" + previousFileSize + "-");
                FFLogger.i(this, "set previous file size: " + previousFileSize);
            }
        }
    }

    @Override
    public void run() {
        try {
            if (responseHandler != null) {
                responseHandler.sendStartMsg(reqTag, reqUrl);
            }
            makeRequestWithRetries();
            if (responseHandler != null) {
                responseHandler.sendFinishMsg(reqTag, reqUrl);
            }
        } catch (IOException e) {
            if (responseHandler != null) {
                responseHandler.sendFailureMsg(e, reqTag, reqUrl);
                responseHandler.sendFinishMsg(reqTag, reqUrl);
            }
        }
    }

    private void makeRequest() throws IOException {
        if (!Thread.currentThread().isInterrupted()) {
            try {
                HttpResponse response = client.execute(request, context);
                if (!Thread.currentThread().isInterrupted()) {
                    if (responseHandler != null) {
                        responseHandler.sendRespMsg(response, reqTag, reqUrl);
                    }
                } else {
                }
            } catch (IOException e) {
                if (!Thread.currentThread().isInterrupted()) {
                    throw e;
                }
            }
        }
    }

    private void makeRequestWithRetries() throws ConnectException {
        boolean retry = true;
        IOException cause = null;
        HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                if (responseHandler != null) {
                    responseHandler.sendFailureMsg(e, reqTag, reqUrl);
                }
                return;
            } catch (SocketException e) {
                if (responseHandler != null) {
                    responseHandler.sendFailureMsg(e, reqTag, reqUrl);
                }
                return;
            } catch (SocketTimeoutException e) {
                if (responseHandler != null) {
                    responseHandler.sendFailureMsg(e, reqTag, reqUrl);
                }
                return;
            } catch (IOException e) {
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                cause = new IOException("NPE in HttpClient" + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
        }
        ConnectException ex = new ConnectException();
        ex.initCause(cause);
        throw ex;
    }
}