Improve documentation and implement a new ServiceID class

httpchannel-util/src/main/java/com/rogiel/httpchannel/service/channel/InputStreamDownloadChannel.java

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+/*
+ * This file is part of seedbox <github.com/seedbox>.
+ *
+ * seedbox is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * seedbox is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with seedbox.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.rogiel.httpchannel.service.channel;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+
+import com.rogiel.httpchannel.service.DownloadChannel;
+
+
+/**
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ * 
+ */
+public class InputStreamDownloadChannel implements DownloadChannel {
+	private final ReadableByteChannel channel;
+
+	private final long length;
+	private final String filename;
+
+	public InputStreamDownloadChannel(InputStream in, final long length,
+			final String filename) {
+		this.channel = Channels.newChannel(in);
+		this.length = length;
+		this.filename = filename;
+	}
+
+	@Override
+	public int read(ByteBuffer dst) throws IOException {
+		return channel.read(dst);
+	}
+
+	@Override
+	public boolean isOpen() {
+		return channel.isOpen();
+	}
+
+	@Override
+	public void close() throws IOException {
+		channel.close();
+	}
+
+	@Override
+	public long getFilesize() {
+		return length;
+	}
+
+	@Override
+	public String getFilename() {
+		return filename;
+	}
+}

httpchannel-util/src/main/java/com/rogiel/httpchannel/service/channel/LinkedUploadChannel.java

@@ -0,0 +1,93 @@
+/*
+ * This file is part of seedbox <github.com/seedbox>.
+ *
+ * seedbox is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * seedbox is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with seedbox.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.rogiel.httpchannel.service.channel;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.WritableByteChannel;
+
+import com.rogiel.httpchannel.service.UploadChannel;
+
+
+/**
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ * 
+ */
+public class LinkedUploadChannel implements UploadChannel {
+	private WritableByteChannel channel;
+	private final LinkedUploadChannelCloseCallback closeCallback;
+
+	private final long length;
+	private final String filename;
+	private String downloadLink;
+
+	private boolean open = true;
+
+	public LinkedUploadChannel(LinkedUploadChannelCloseCallback closeCallback,
+			long filesize, String filename) {
+		this.closeCallback = closeCallback;
+		this.filename = filename;
+		this.length = filesize;
+	}
+
+	@Override
+	public int write(ByteBuffer src) throws IOException {
+		if (channel == null)
+			throw new IOException("Channel is not linked yet");
+		return channel.write(src);
+	}
+
+	@Override
+	public boolean isOpen() {
+		return (channel != null ? channel.isOpen() : true) && open;
+	}
+
+	@Override
+	public void close() throws IOException {
+		open = false;
+		downloadLink = closeCallback.finish();
+	}
+
+	public interface LinkedUploadChannelCloseCallback {
+		String finish() throws IOException;
+	}
+
+	@Override
+	public long getFilesize() {
+		return length;
+	}
+
+	@Override
+	public String getFilename() {
+		return filename;
+	}
+
+	@Override
+	public String getDownloadLink() {
+		return downloadLink;
+	}
+
+	public void linkChannel(WritableByteChannel channel) throws IOException {
+		if(this.channel != null)
+			throw new IOException("This channel is already linked.");
+		this.channel = channel;
+	}
+
+	public boolean isLinked() {
+		return channel != null;
+	}
+}

httpchannel-util/src/main/java/com/rogiel/httpchannel/service/channel/LinkedUploadChannelContentBody.java

@@ -0,0 +1,75 @@
+/*
+ * This file is part of seedbox <github.com/seedbox>.
+ *
+ * seedbox is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * seedbox is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with seedbox.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.rogiel.httpchannel.service.channel;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.channels.Channels;
+import java.nio.channels.WritableByteChannel;
+
+import org.apache.http.entity.mime.content.AbstractContentBody;
+import org.apache.http.entity.mime.content.ContentBody;
+
+import com.rogiel.httpchannel.service.Uploader;
+
+/**
+ * {@link ContentBody} used to upload files in {@link Uploader} implementations.
+ * 
+ * @author Rogiel
+ * @since 1.0
+ */
+public class LinkedUploadChannelContentBody extends AbstractContentBody {
+	private final LinkedUploadChannel channel;
+
+	public LinkedUploadChannelContentBody(LinkedUploadChannel channel) {
+		super("application/octet-stream");
+		this.channel = channel;
+	}
+
+	@Override
+	public String getFilename() {
+		return channel.getFilename();
+	}
+
+	@Override
+	public void writeTo(OutputStream out) throws IOException {
+		final WritableByteChannel outputChannel = Channels.newChannel(out);
+		channel.linkChannel(outputChannel);
+
+		while (channel.isOpen() && outputChannel.isOpen()) {
+			try {
+				Thread.sleep(500);
+			} catch (InterruptedException e) {
+			}
+		}
+	}
+
+	@Override
+	public String getCharset() {
+		return null;
+	}
+
+	@Override
+	public long getContentLength() {
+		return channel.getFilesize();
+	}
+
+	@Override
+	public String getTransferEncoding() {
+		return "binary";
+	}
+}