Added Android code

[wl-app.git] / Android / r2-streamer / r2-parser / src / main / java / org / readium / r2_streamer / model / container / DirectoryContainer.java

diff --git a/Android/r2-streamer/r2-parser/src/main/java/org/readium/r2_streamer/model/container/DirectoryContainer.java b/Android/r2-streamer/r2-parser/src/main/java/org/readium/r2_streamer/model/container/DirectoryContainer.java
new file mode 100755 (executable)
index 0000000..0bf888e
--- /dev/null
+++ b/Android/r2-streamer/r2-parser/src/main/java/org/readium/r2_streamer/model/container/DirectoryContainer.java
@@ -0,0 +1,96 @@
+package org.readium.r2_streamer.model.container;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
+/**
+ * Created by Shrikant Badwaik on 24-Jan-17.
+ */
+
+public class DirectoryContainer implements Container {
+    private final String TAG = "DirectoryContainer ";
+    private String rootPath;
+
+    public DirectoryContainer(String rootPath) {
+        this.rootPath = rootPath;
+        File epubDirectoryFile = new File(rootPath);
+        if (!epubDirectoryFile.exists()) {
+            System.out.println(TAG + " No such directory exists at path: " + epubDirectoryFile);
+        }
+    }
+
+    @Override
+    public String rawData(String relativePath) throws NullPointerException {
+        String filePath = rootPath.concat(relativePath);
+        File epubFile = new File(filePath);
+
+        if (epubFile.exists()) {
+            System.out.println(TAG + relativePath + " File exists at given path");
+
+            try {
+                InputStream is = new FileInputStream(epubFile);
+                BufferedReader br = new BufferedReader(new InputStreamReader(is));
+                StringBuilder sb = new StringBuilder();
+                String line;
+
+                while ((line = br.readLine()) != null) {
+                    sb.append(line);        //.append('\n');
+                }
+
+                return sb.toString();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        } else if (!epubFile.exists()) {
+            System.out.println(TAG + " No such file exists at given path: " + relativePath);
+        }
+        return null;
+    }
+
+    @Override
+    public int rawDataSize(String relativePath) {
+        String filePath = rootPath.concat(relativePath);
+        File epubFile = new File(filePath);
+        return ((int) epubFile.length());
+    }
+
+    @Override
+    public List<String> listFiles() {
+        return null;
+    }
+
+    @Override
+    public InputStream rawDataInputStream(final String relativePath) throws NullPointerException {
+        try {
+            /*String filePath = rootPath.concat(relativePath);
+            File directoryFile = new File(filePath);
+            InputStream inputStream = new FileInputStream(directoryFile);
+            return inputStream;*/
+
+            Callable<InputStream> callable = new Callable<InputStream>() {
+                @Override
+                public InputStream call() throws Exception {
+                    String filePath = rootPath.concat(relativePath);
+                    File directoryFile = new File(filePath);
+                    return new FileInputStream(directoryFile);
+                }
+            };
+            ExecutorService executorService = Executors.newCachedThreadPool();
+            Future<InputStream> future = executorService.submit(callable);
+            return future.get();
+        } catch (InterruptedException | ExecutionException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}
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