提交项目

2016-04-25 11:18:59 +08:00
commit 3f29f7b39a
660 changed files with 68059 additions and 0 deletions
--- a/app/src/main/java/com/gh/download/DownloadThread.java
+++ b/app/src/main/java/com/gh/download/DownloadThread.java
@ -0,0 +1,165 @@
+package com.gh.download;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.apache.http.HttpStatus;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.gh.common.util.Trace;
+import com.gh.common.util.Utils;
+
+public class DownloadThread extends Thread {
+	private static final int CONNECT_TIME = 5000;
+	private static final int READ_TIME = 5000;
+
+	private DownloadEntry entry;
+	private DownloadListener listener;
+	private DownloadStatus status;
+	private Context context;
+
+	public DownloadThread(Context context, DownloadEntry entry,
+			DownloadListener listener) {
+		this.entry = entry;
+		this.listener = listener;
+		this.context = context;
+	}
+
+	@Override
+	public void run() {
+		super.run();
+
+		try {
+			File targetFile = new File(entry.getPath());
+			if (!targetFile.exists()) {
+				File dir = targetFile.getParentFile();
+				if (dir.exists() || dir.mkdirs()) {
+					targetFile.createNewFile();
+				}
+			}
+
+			BufferedInputStream bis = null;
+			BufferedOutputStream bos = null;
+
+			FileOutputStream fileOutputStream = null;
+			if (targetFile.length() > 0) {
+				fileOutputStream = new FileOutputStream(entry.getPath(), true);
+			} else {
+				fileOutputStream = new FileOutputStream(entry.getPath());
+			}
+
+			URL url = new URL(entry.getUrl());
+			HttpURLConnection connection = (HttpURLConnection) url
+					.openConnection();
+			connection.setRequestMethod("GET");
+			connection.setConnectTimeout(CONNECT_TIME);
+			connection.setReadTimeout(READ_TIME);
+			connection.setRequestProperty("RANGE",
+					"bytes=" + targetFile.length() + "-");
+			//设置自动重定向
+			connection.setInstanceFollowRedirects(true);
+			Trace.getInstance().debug(DownloadThread.class.getSimpleName(),
+					"startPosition-->" + targetFile.length());
+			
+			int code = connection.getResponseCode();
+			if (code == HttpStatus.SC_MOVED_PERMANENTLY || code == HttpStatus.SC_MOVED_TEMPORARILY) {
+				//未自动重定向
+				String location = connection.getHeaderField("Location");
+				Utils.log("location = " + location);
+//				entry.setUrl(location);
+				url = new URL(location);
+				connection = (HttpURLConnection) url
+						.openConnection();
+				connection.setRequestMethod("GET");
+				connection.setConnectTimeout(CONNECT_TIME);
+				connection.setReadTimeout(READ_TIME);
+				connection.setRequestProperty("RANGE",
+						"bytes=" + targetFile.length() + "-");
+				//设置自动重定向
+				connection.setInstanceFollowRedirects(true);
+			}
+			
+			bis = new BufferedInputStream(connection.getInputStream());
+			bos = new BufferedOutputStream(fileOutputStream);
+			long conentLength = connection.getContentLength();
+			String eTag = connection.getHeaderField("ETag");
+			if (!TextUtils.isEmpty(eTag) && eTag.startsWith("\"") && eTag.endsWith("\"")) {
+				eTag = eTag.substring(1, eTag.length() - 1);
+			}
+			String eTag2 = entry.getMeta().get("ETag");
+			if (!TextUtils.isEmpty(eTag2) && !eTag2.equals(eTag)) {
+				//链接被劫持，抛出异常
+				Utils.log("eTag = " + eTag);
+				Utils.log("eTag2 = " + eTag2);
+				listener.onStatusChanged(DownloadStatus.hijack);
+				Trace.getInstance().debug(DownloadThread.class.getSimpleName(),
+						"error-->链接被劫持");
+				interrupt();
+			} else {
+				// 第一次下载记录文件长度
+				if (entry.getSize() == 0) {
+					entry.setSize(conentLength);
+					DownloadDao.getInstance(context).newOrUpdate(entry);
+					Trace.getInstance().debug(DownloadThread.class.getSimpleName(),
+							"记录第一次长度");
+				}
+				Trace.getInstance().debug(
+						DownloadThread.class.getSimpleName(),
+						"progress:" + entry.getProgress() + "/curfilesize:"
+								+ targetFile.length() + "=====contentLength:"
+								+ conentLength + "/ totalSize:" + entry.getSize());
+				
+				byte[] buffer = new byte[2048];
+				int len;
+				while ((len = bis.read(buffer)) != -1) {
+					bos.write(buffer, 0, len);
+					listener.onProgressChanged(len);
+					if (status == DownloadStatus.pause
+							|| status == DownloadStatus.cancel) {
+						listener.onStatusChanged(status);
+						break;
+					}
+				}
+				if (status != DownloadStatus.pause
+						&& status != DownloadStatus.cancel) {
+					listener.onStatusChanged(DownloadStatus.done);
+				}
+				bos.flush();
+				Log.v("bug_test", "flush==>" + targetFile.length() + ",progress==>"
+						+ entry.getProgress());
+				Trace.getInstance().debug(
+						DownloadThread.class.getSimpleName(),
+						"flush==>" + targetFile.length() + ",progress==>"
+								+ entry.getProgress());
+				
+				bis.close();
+				bos.close();
+			}
+		} catch (Exception e) {
+			//e.getMessage() will null error
+			if (!TextUtils.isEmpty(e.getMessage()) && e.getMessage().contains("connection timeout")) {
+				listener.onStatusChanged(DownloadStatus.timeout);
+			} else {
+				listener.onStatusChanged(DownloadStatus.neterror);
+			}
+			Trace.getInstance().debug(DownloadThread.class.getSimpleName(),
+					"exception-->" + e.toString());
+		}
+	}
+
+	public void pause() {
+		status = DownloadStatus.pause;
+	}
+
+	public void cancle() {
+		status = DownloadStatus.cancel;
+	}
+
+}