org.eclipse.mylyn.monitor.usage/src/org/eclipse/mylyn/internal/monitor/usage/UsageUploadManager.java - mylyn/org.eclipse.mylyn.incubator - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009, 2010 Tasktop Technologies and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/

 package org.eclipse.mylyn.internal.monitor.usage;

 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.NoRouteToHostException;
 import java.net.UnknownHostException;

 import org.apache.commons.httpclient.HostConfiguration;
 import org.apache.commons.httpclient.HttpClient;
 import org.apache.commons.httpclient.HttpStatus;
 import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
 import org.apache.commons.httpclient.NameValuePair;
 import org.apache.commons.httpclient.methods.GetMethod;
 import org.apache.commons.httpclient.methods.PostMethod;
 import org.apache.commons.httpclient.methods.multipart.FilePart;
 import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
 import org.apache.commons.httpclient.methods.multipart.Part;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.mylyn.commons.net.AbstractWebLocation;
 import org.eclipse.mylyn.commons.net.WebLocation;
 import org.eclipse.mylyn.commons.net.WebUtil;
 import org.eclipse.osgi.util.NLS;

 public class UsageUploadManager {

 	protected HttpClient httpClient = new HttpClient(new MultiThreadedHttpConnectionManager());

 	private static final int SIZE_OF_INT = 8;

 	public IStatus uploadFile(final String postUrl, final File file, final int uid, IProgressMonitor monitor) {
 		// make sure that we send the uid with all files
 		String filename = file.getName();
 		if (!filename.startsWith(uid + ".")) { //$NON-NLS-1$
 			filename = uid + "-" + filename; //$NON-NLS-1$
 		}
 		return uploadFile(postUrl, "temp.txt", file, filename, uid, monitor); //$NON-NLS-1$

 	}

 	public IStatus uploadFile(final String postUrl, final String name, final File file, final String filename,
 			final int uid, IProgressMonitor monitor) {

 		PostMethod filePost = new PostMethod(postUrl);

 		try {
 			Part[] parts = { new FilePart(name, filename, file) };
 			filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));

 			AbstractWebLocation location = new WebLocation(postUrl);
 			HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
 			final int status = WebUtil.execute(httpClient, hostConfiguration, filePost, monitor);

 			if (status == HttpStatus.SC_UNAUTHORIZED) {
 				// The uid was incorrect so inform the user
 				return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status, NLS.bind(
 						Messages.UsageUploadManager_Error_Uploading_Uid_Incorrect, file.getName(), uid),
 						new Exception());

 			} else if (status == HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED) {
 				return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status,
 						Messages.UsageUploadManager_Error_Uploading_Proxy_Authentication, new Exception());
 			} else if (status != 200) {
 				// there was a problem with the file upload so throw up an error
 				// dialog to inform the user
 				return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status, NLS.bind(
 						Messages.UsageUploadManager_Error_Uploading_Http_Response, file.getName(), status),
 						new Exception());
 			} else {
 				// the file was uploaded successfully
 				return Status.OK_STATUS;
 			}

 		} catch (final FileNotFoundException e) {
 			return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
 					Messages.UsageUploadManager_Error_Uploading_X_Y, file.getName(), e.getClass().getCanonicalName()),
 					e);

 		} catch (final IOException e) {
 			if (e instanceof NoRouteToHostException || e instanceof UnknownHostException) {
 				return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
 						Messages.UsageUploadManager_Error_Uploading_X_No_Network, file.getName()), e);

 			} else {
 				return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
 						Messages.UsageUploadManager_Error_Uploading_X_Y, file.getName(), e.getClass()
 								.getCanonicalName()), e);
 			}
 		} finally {
 			filePost.releaseConnection();
 		}
 	}

 	public int getExistingUid(StudyParameters studyParameters, String firstName, String lastName, String emailAddress,
 			boolean anonymous, IProgressMonitor monitor) throws UsageDataException {
 		// TODO extract url for servlet
 		String url = studyParameters.getUserIdServletUrl();
 		final GetMethod getUidMethod = new GetMethod(url);

 		try {
 			NameValuePair first = new NameValuePair("firstName", firstName); //$NON-NLS-1$
 			NameValuePair last = new NameValuePair("lastName", lastName); //$NON-NLS-1$
 			NameValuePair email = new NameValuePair("email", emailAddress); //$NON-NLS-1$
 			NameValuePair job = new NameValuePair("jobFunction", ""); //$NON-NLS-1$ //$NON-NLS-2$
 			NameValuePair size = new NameValuePair("companySize", ""); //$NON-NLS-1$ //$NON-NLS-2$
 			NameValuePair buisness = new NameValuePair("companyBuisness", ""); //$NON-NLS-1$ //$NON-NLS-2$
 			NameValuePair contact = new NameValuePair("contact", ""); //$NON-NLS-1$ //$NON-NLS-2$
 			NameValuePair anon = null;
 			if (anonymous) {
 				anon = new NameValuePair("anonymous", "true"); //$NON-NLS-1$ //$NON-NLS-2$
 			} else {
 				anon = new NameValuePair("anonymous", "false"); //$NON-NLS-1$ //$NON-NLS-2$
 			}

 			if (studyParameters.usingContactField()) {
 				getUidMethod.setQueryString(new NameValuePair[] { first, last, email, job, size, buisness, anon,
 						contact });
 			} else {
 				getUidMethod.setQueryString(new NameValuePair[] { first, last, email, job, size, buisness, anon });
 			}

 			// create a new client and upload the file
 			AbstractWebLocation location = new WebLocation(url);
 			HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
 			final int status = WebUtil.execute(httpClient, hostConfiguration, getUidMethod, monitor);

 			if (status == HttpStatus.SC_OK) {
 				InputStream inputStream = WebUtil.getResponseBodyAsStream(getUidMethod, monitor);
 				try {
 					String response = getStringFromStream(inputStream);
 					response = response.substring(response.indexOf(":") + 1).trim(); //$NON-NLS-1$
 					int uid = Integer.parseInt(response);
 					return uid;
 				} finally {
 					inputStream.close();
 				}
 			} else {
 				throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_Http_Response,
 						status));
 			}

 		} catch (UsageDataException e) {
 			throw e;
 		} catch (final IOException e) {
 			throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_UidX_Y, e.getClass()
 					.getCanonicalName(), e.getMessage()), e);
 		} catch (final Exception e) {
 			if (e instanceof NoRouteToHostException || e instanceof UnknownHostException) {
 				throw new UsageDataException(Messages.UsageUploadManager_Error_Getting_Uid_No_Network, e);
 			} else {
 				throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_X_Y, e.getClass()
 						.getCanonicalName(), e.getMessage()), e);
 			}

 		} finally {
 			getUidMethod.releaseConnection();
 		}
 	}

 	private String getStringFromStream(InputStream i) throws IOException {
 		String s = ""; //$NON-NLS-1$
 		String data = ""; //$NON-NLS-1$
 		BufferedReader br = new BufferedReader(new InputStreamReader(i));
 		while ((s = br.readLine()) != null) {
 			data += s;
 		}

 		return data;
 	}

 	public int getNewUid(StudyParameters studyParameters, IProgressMonitor monitor) throws UsageDataException {
 		// TODO extract url for servlet
 		String url = studyParameters.getUserIdServletUrl();
 		final PostMethod getUserIdMethod = new PostMethod(url);
 		try {
 			getUserIdMethod.addParameter(new NameValuePair("MylarUserID", "")); //$NON-NLS-1$//$NON-NLS-2$

 			AbstractWebLocation location = new WebLocation(url);
 			HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
 			final int status = WebUtil.execute(httpClient, hostConfiguration, getUserIdMethod, monitor);

 			if (status == HttpStatus.SC_OK) {
 				InputStream inputStream = WebUtil.getResponseBodyAsStream(getUserIdMethod, monitor);
 				try {
 					byte[] buffer = new byte[SIZE_OF_INT];
 					int numBytesRead = inputStream.read(buffer);
 					int uid = new Integer(new String(buffer, 0, numBytesRead)).intValue();
 					return uid;
 				} finally {
 					inputStream.close();
 				}
 			} else {
 				throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_Http_Response,
 						status));
 			}

 		} catch (final IOException e) {
 			if (e instanceof NoRouteToHostException || e instanceof UnknownHostException) {
 				throw new UsageDataException(Messages.UsageUploadManager_Error_Getting_Uid_No_Network, e);
 			} else {
 				throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_X, e.getClass()
 						.getCanonicalName()), e);

 			}
 		} finally {
 			WebUtil.releaseConnection(getUserIdMethod, monitor);
 		}
 	}

 	public int getNewUid(StudyParameters studyParameters, String firstName, String lastName, String emailAddress,
 			boolean anonymous, String jobFunction, String companySize, String companyFunction, boolean contactEmail,
 			IProgressMonitor monitor) throws UsageDataException {
 		return getNewUid(studyParameters, monitor);
 		// TODO add back the code for dealing with creasting a user given a name
 //			// NameValuePair first = new NameValuePair("firstName", firstName);
 //			// NameValuePair last = new NameValuePair("lastName", lastName);
 //			// NameValuePair email = new NameValuePair("email", emailAddress);
 //			// NameValuePair job = new NameValuePair("jobFunction",
 //			// jobFunction);
 //			// NameValuePair size = new NameValuePair("companySize",
 //			// companySize);
 //			// NameValuePair buisness = new NameValuePair("companyBuisness",
 //			// companyFunction);
 //			// NameValuePair contact = null;
 //			// if (contactEmail) {
 //			// contact = new NameValuePair("contact", "true");
 //			// } else {
 //			// contact = new NameValuePair("contact", "false");
 //			// }
 //			// NameValuePair anon = null;
 //			// if (anonymous) {
 //			// anon = new NameValuePair("anonymous", "true");
 //			// } else {
 //			// anon = new NameValuePair("anonymous", "false");
 //			// }

 //		} catch (Exception e) {
 //			// there was a problem with the file upload so throw up an error
 //			// dialog to inform the user and log the exception
 //			if (e instanceof NoRouteToHostException || e instanceof UnknownHostException) {
 //				MessageDialog.openError(null, "Error Uploading", "There was an error getting a new user id: \n"
 //						+ "No network connection.  Please try again later");
 //			} else {
 //				MessageDialog.openError(null, "Error Uploading", "There was an error getting a new user id: \n"
 //						+ e.getClass().getCanonicalName());
 //				StatusHandler.log(new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, "Error uploading", e));
 //			}
 //		}

 	}
 }
	/*******************************************************************************
	* Copyright (c) 2009, 2010 Tasktop Technologies and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/

	package org.eclipse.mylyn.internal.monitor.usage;

	import java.io.BufferedReader;
	import java.io.File;
	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.net.NoRouteToHostException;
	import java.net.UnknownHostException;

	import org.apache.commons.httpclient.HostConfiguration;
	import org.apache.commons.httpclient.HttpClient;
	import org.apache.commons.httpclient.HttpStatus;
	import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
	import org.apache.commons.httpclient.NameValuePair;
	import org.apache.commons.httpclient.methods.GetMethod;
	import org.apache.commons.httpclient.methods.PostMethod;
	import org.apache.commons.httpclient.methods.multipart.FilePart;
	import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
	import org.apache.commons.httpclient.methods.multipart.Part;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.mylyn.commons.net.AbstractWebLocation;
	import org.eclipse.mylyn.commons.net.WebLocation;
	import org.eclipse.mylyn.commons.net.WebUtil;
	import org.eclipse.osgi.util.NLS;

	public class UsageUploadManager {

	protected HttpClient httpClient = new HttpClient(new MultiThreadedHttpConnectionManager());

	private static final int SIZE_OF_INT = 8;

	public IStatus uploadFile(final String postUrl, final File file, final int uid, IProgressMonitor monitor) {
	// make sure that we send the uid with all files
	String filename = file.getName();
	if (!filename.startsWith(uid + ".")) { //$NON-NLS-1$
	filename = uid + "-" + filename; //$NON-NLS-1$
	}
	return uploadFile(postUrl, "temp.txt", file, filename, uid, monitor); //$NON-NLS-1$

	}

	public IStatus uploadFile(final String postUrl, final String name, final File file, final String filename,
	final int uid, IProgressMonitor monitor) {

	PostMethod filePost = new PostMethod(postUrl);

	try {
	Part[] parts = { new FilePart(name, filename, file) };
	filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));

	AbstractWebLocation location = new WebLocation(postUrl);
	HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
	final int status = WebUtil.execute(httpClient, hostConfiguration, filePost, monitor);

	if (status == HttpStatus.SC_UNAUTHORIZED) {
	// The uid was incorrect so inform the user
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status, NLS.bind(
	Messages.UsageUploadManager_Error_Uploading_Uid_Incorrect, file.getName(), uid),
	new Exception());

	} else if (status == HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED) {
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status,
	Messages.UsageUploadManager_Error_Uploading_Proxy_Authentication, new Exception());
	} else if (status != 200) {
	// there was a problem with the file upload so throw up an error
	// dialog to inform the user
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, status, NLS.bind(
	Messages.UsageUploadManager_Error_Uploading_Http_Response, file.getName(), status),
	new Exception());
	} else {
	// the file was uploaded successfully
	return Status.OK_STATUS;
	}

	} catch (final FileNotFoundException e) {
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
	Messages.UsageUploadManager_Error_Uploading_X_Y, file.getName(), e.getClass().getCanonicalName()),
	e);

	} catch (final IOException e) {
	if (e instanceof NoRouteToHostException \|\| e instanceof UnknownHostException) {
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
	Messages.UsageUploadManager_Error_Uploading_X_No_Network, file.getName()), e);

	} else {
	return new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, NLS.bind(
	Messages.UsageUploadManager_Error_Uploading_X_Y, file.getName(), e.getClass()
	.getCanonicalName()), e);
	}
	} finally {
	filePost.releaseConnection();
	}
	}

	public int getExistingUid(StudyParameters studyParameters, String firstName, String lastName, String emailAddress,
	boolean anonymous, IProgressMonitor monitor) throws UsageDataException {
	// TODO extract url for servlet
	String url = studyParameters.getUserIdServletUrl();
	final GetMethod getUidMethod = new GetMethod(url);

	try {
	NameValuePair first = new NameValuePair("firstName", firstName); //$NON-NLS-1$
	NameValuePair last = new NameValuePair("lastName", lastName); //$NON-NLS-1$
	NameValuePair email = new NameValuePair("email", emailAddress); //$NON-NLS-1$
	NameValuePair job = new NameValuePair("jobFunction", ""); //$NON-NLS-1$ //$NON-NLS-2$
	NameValuePair size = new NameValuePair("companySize", ""); //$NON-NLS-1$ //$NON-NLS-2$
	NameValuePair buisness = new NameValuePair("companyBuisness", ""); //$NON-NLS-1$ //$NON-NLS-2$
	NameValuePair contact = new NameValuePair("contact", ""); //$NON-NLS-1$ //$NON-NLS-2$
	NameValuePair anon = null;
	if (anonymous) {
	anon = new NameValuePair("anonymous", "true"); //$NON-NLS-1$ //$NON-NLS-2$
	} else {
	anon = new NameValuePair("anonymous", "false"); //$NON-NLS-1$ //$NON-NLS-2$
	}

	if (studyParameters.usingContactField()) {
	getUidMethod.setQueryString(new NameValuePair[] { first, last, email, job, size, buisness, anon,
	contact });
	} else {
	getUidMethod.setQueryString(new NameValuePair[] { first, last, email, job, size, buisness, anon });
	}

	// create a new client and upload the file
	AbstractWebLocation location = new WebLocation(url);
	HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
	final int status = WebUtil.execute(httpClient, hostConfiguration, getUidMethod, monitor);

	if (status == HttpStatus.SC_OK) {
	InputStream inputStream = WebUtil.getResponseBodyAsStream(getUidMethod, monitor);
	try {
	String response = getStringFromStream(inputStream);
	response = response.substring(response.indexOf(":") + 1).trim(); //$NON-NLS-1$
	int uid = Integer.parseInt(response);
	return uid;
	} finally {
	inputStream.close();
	}
	} else {
	throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_Http_Response,
	status));
	}

	} catch (UsageDataException e) {
	throw e;
	} catch (final IOException e) {
	throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_UidX_Y, e.getClass()
	.getCanonicalName(), e.getMessage()), e);
	} catch (final Exception e) {
	if (e instanceof NoRouteToHostException \|\| e instanceof UnknownHostException) {
	throw new UsageDataException(Messages.UsageUploadManager_Error_Getting_Uid_No_Network, e);
	} else {
	throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_X_Y, e.getClass()
	.getCanonicalName(), e.getMessage()), e);
	}

	} finally {
	getUidMethod.releaseConnection();
	}
	}

	private String getStringFromStream(InputStream i) throws IOException {
	String s = ""; //$NON-NLS-1$
	String data = ""; //$NON-NLS-1$
	BufferedReader br = new BufferedReader(new InputStreamReader(i));
	while ((s = br.readLine()) != null) {
	data += s;
	}

	return data;
	}

	public int getNewUid(StudyParameters studyParameters, IProgressMonitor monitor) throws UsageDataException {
	// TODO extract url for servlet
	String url = studyParameters.getUserIdServletUrl();
	final PostMethod getUserIdMethod = new PostMethod(url);
	try {
	getUserIdMethod.addParameter(new NameValuePair("MylarUserID", "")); //$NON-NLS-1$//$NON-NLS-2$

	AbstractWebLocation location = new WebLocation(url);
	HostConfiguration hostConfiguration = WebUtil.createHostConfiguration(httpClient, location, monitor);
	final int status = WebUtil.execute(httpClient, hostConfiguration, getUserIdMethod, monitor);

	if (status == HttpStatus.SC_OK) {
	InputStream inputStream = WebUtil.getResponseBodyAsStream(getUserIdMethod, monitor);
	try {
	byte[] buffer = new byte[SIZE_OF_INT];
	int numBytesRead = inputStream.read(buffer);
	int uid = new Integer(new String(buffer, 0, numBytesRead)).intValue();
	return uid;
	} finally {
	inputStream.close();
	}
	} else {
	throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_Http_Response,
	status));
	}

	} catch (final IOException e) {
	if (e instanceof NoRouteToHostException \|\| e instanceof UnknownHostException) {
	throw new UsageDataException(Messages.UsageUploadManager_Error_Getting_Uid_No_Network, e);
	} else {
	throw new UsageDataException(NLS.bind(Messages.UsageUploadManager_Error_Getting_Uid_X, e.getClass()
	.getCanonicalName()), e);

	}
	} finally {
	WebUtil.releaseConnection(getUserIdMethod, monitor);
	}
	}

	public int getNewUid(StudyParameters studyParameters, String firstName, String lastName, String emailAddress,
	boolean anonymous, String jobFunction, String companySize, String companyFunction, boolean contactEmail,
	IProgressMonitor monitor) throws UsageDataException {
	return getNewUid(studyParameters, monitor);
	// TODO add back the code for dealing with creasting a user given a name
	// // NameValuePair first = new NameValuePair("firstName", firstName);
	// // NameValuePair last = new NameValuePair("lastName", lastName);
	// // NameValuePair email = new NameValuePair("email", emailAddress);
	// // NameValuePair job = new NameValuePair("jobFunction",
	// // jobFunction);
	// // NameValuePair size = new NameValuePair("companySize",
	// // companySize);
	// // NameValuePair buisness = new NameValuePair("companyBuisness",
	// // companyFunction);
	// // NameValuePair contact = null;
	// // if (contactEmail) {
	// // contact = new NameValuePair("contact", "true");
	// // } else {
	// // contact = new NameValuePair("contact", "false");
	// // }
	// // NameValuePair anon = null;
	// // if (anonymous) {
	// // anon = new NameValuePair("anonymous", "true");
	// // } else {
	// // anon = new NameValuePair("anonymous", "false");
	// // }

	// } catch (Exception e) {
	// // there was a problem with the file upload so throw up an error
	// // dialog to inform the user and log the exception
	// if (e instanceof NoRouteToHostException \|\| e instanceof UnknownHostException) {
	// MessageDialog.openError(null, "Error Uploading", "There was an error getting a new user id: \n"
	// + "No network connection. Please try again later");
	// } else {
	// MessageDialog.openError(null, "Error Uploading", "There was an error getting a new user id: \n"
	// + e.getClass().getCanonicalName());
	// StatusHandler.log(new Status(IStatus.ERROR, UiUsageMonitorPlugin.ID_PLUGIN, "Error uploading", e));
	// }
	// }

	}
	}