More build refinement, HTTP improvements, small info retrieval refactoring

git-svn-id: https://zxing.googlecode.com/svn/trunk@2687 59b500cc-1b3d-0410-9834-0bbf25fbcc57

android/src/com/google/zxing/client/android/HttpHelper.java

@@ -51,6 +51,8 @@ public final class HttpHelper {
     HTML,
     /** JSON content */
     JSON,
+    /** XML */
+    XML,
     /** Plain text content */
     TEXT,
   }
@@ -80,6 +82,9 @@ public final class HttpHelper {
       case JSON:
         contentTypes = "application/json,text/*,*/*";
         break;
+      case XML:
+        contentTypes = "application/xml,text/*,*/*";
+        break;
       case TEXT:
       default:
         contentTypes = "text/*,*/*";
@@ -88,22 +93,35 @@ public final class HttpHelper {
   }
 
   private static CharSequence downloadViaHttp(String uri, String contentTypes, int maxChars) throws IOException {
-    Log.i(TAG, "Downloading " + uri);
-    URL url = new URL(uri);
-    HttpURLConnection connection = safelyOpenConnection(url);
-    connection.setRequestProperty("Accept", contentTypes);
-    connection.setRequestProperty("Accept-Charset", "utf-8,*");
-    connection.setRequestProperty("User-Agent", "ZXing (Android)");
-    try {
-      int responseCode = safelyConnect(uri, connection);
-      if (responseCode != HttpURLConnection.HTTP_OK) {
-        throw new IOException("Bad HTTP response: " + responseCode);
+    int redirects = 0;
+    while (redirects < 5) {
+      URL url = new URL(uri);
+      HttpURLConnection connection = safelyOpenConnection(url);
+      connection.setInstanceFollowRedirects(true); // Won't work HTTP -> HTTPS or vice versa
+      connection.setRequestProperty("Accept", contentTypes);
+      connection.setRequestProperty("Accept-Charset", "utf-8,*");
+      connection.setRequestProperty("User-Agent", "ZXing (Android)");
+      try {
+        int responseCode = safelyConnect(uri, connection);
+        switch (responseCode) {
+          case HttpURLConnection.HTTP_OK:
+            return consume(connection, maxChars);
+          case HttpURLConnection.HTTP_MOVED_TEMP:
+            String location = connection.getHeaderField("Location");
+            if (location != null) {
+              uri = location;
+              redirects++;
+              continue;
+            }
+            throw new IOException("No Location");
+          default:
+            throw new IOException("Bad HTTP response: " + responseCode);
+        }
+      } finally {
+        connection.disconnect();
       }
-      Log.i(TAG, "Consuming " + uri);
-      return consume(connection, maxChars);
-    } finally {
-      connection.disconnect();
     }
+    throw new IOException("Too many redirects");
   }
 
   private static String getEncoding(URLConnection connection) {

android/src/com/google/zxing/client/android/result/supplement/BookResultInfoRetriever.java

@@ -92,28 +92,9 @@ final class BookResultInfoRetriever extends SupplementalInfoRetriever {
     }
 
     Collection<String> newTexts = new ArrayList<String>();
-
-    if (title != null && title.length() > 0) {
-      newTexts.add(title);
-    }
-
-    if (authors != null && !authors.isEmpty()) {
-      boolean first = true;
-      StringBuilder authorsText = new StringBuilder();
-      for (String author : authors) {
-        if (first) {
-          first = false;
-        } else {
-          authorsText.append(", ");
-        }
-        authorsText.append(author);
-      }
-      newTexts.add(authorsText.toString());
-    }
-
-    if (pages != null && pages.length() > 0) {
-      newTexts.add(pages + "pp.");
-    }
+    maybeAddText(title, newTexts);
+    maybeAddTextSeries(authors, newTexts);
+    maybeAddText(pages == null || pages.length() == 0 ? null : pages + "pp.", newTexts);
     
     String baseBookUri = "http://www.google." + LocaleManager.getBookSearchCountryTLD(context)
         + "/search?tbm=bks&source=zxing&q=";

android/src/com/google/zxing/client/android/result/supplement/SupplementalInfoRetriever.java

@@ -29,6 +29,7 @@ import android.widget.TextView;
 import java.io.IOException;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import com.google.zxing.client.android.common.executor.AsyncTaskExecInterface;
@@ -142,5 +143,27 @@ public abstract class SupplementalInfoRetriever extends AsyncTask<Object,Object,
     newContents.add(content);
     newHistories.add(new String[] {itemID, newText});
   }
+  
+  static void maybeAddText(String text, Collection<String> texts) {
+    if (text != null && text.length() > 0) {
+      texts.add(text);
+    }
+  }
+  
+  static void maybeAddTextSeries(Collection<String> textSeries, Collection<String> texts) {
+    if (textSeries != null && !textSeries.isEmpty()) {
+      boolean first = true;
+      StringBuilder authorsText = new StringBuilder();
+      for (String author : textSeries) {
+        if (first) {
+          first = false;
+        } else {
+          authorsText.append(", ");
+        }
+        authorsText.append(author);
+      }
+      texts.add(authorsText.toString());
+    }
+  }
 
 }

pom.xml

@@ -166,12 +166,6 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <version>2.14</version>
-        <configuration>
-          <!--<parallel>classes</parallel>-->
-          <systemPropertyVariables>
-            <explicitLuminanceConversion>true</explicitLuminanceConversion>
-          </systemPropertyVariables>
-        </configuration>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>

zxingorg/web/WEB-INF/web.xml

@@ -37,10 +37,6 @@
     <servlet-name>DecodeServlet</servlet-name>
     <url-pattern>/w/decode</url-pattern>
   </servlet-mapping>
-  <servlet-mapping>
-    <servlet-name>jsp</servlet-name>
-    <url-pattern>*.jspx</url-pattern>
-  </servlet-mapping>
 
   <welcome-file-list>
     <welcome-file>index.jspx</welcome-file>