Java tutorial
/* ownCloud Android Library is available under MIT license * @author David A. Velasco * Copyright (C) 2015 ownCloud Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ package com.owncloud.android.lib.resources.shares; import android.net.Uri; import android.util.Pair; import com.owncloud.android.lib.common.OwnCloudClient; import com.owncloud.android.lib.common.operations.RemoteOperation; import com.owncloud.android.lib.common.operations.RemoteOperationResult; import com.owncloud.android.lib.common.utils.Log_OC; import org.apache.commons.httpclient.methods.PutMethod; import org.apache.commons.httpclient.methods.StringRequestEntity; import org.apache.http.HttpStatus; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.List; /** * Updates parameters of an existing Share resource, known its remote ID. * * Allow updating several parameters, triggering a request to the server per parameter. */ public class UpdateRemoteShareOperation extends RemoteOperation { private static final String TAG = GetRemoteShareOperation.class.getSimpleName(); private static final String PARAM_PASSWORD = "password"; private static final String PARAM_EXPIRATION_DATE = "expireDate"; private static final String FORMAT_EXPIRATION_DATE = "yyyy-MM-dd"; private static final String ENTITY_CONTENT_TYPE = "application/x-www-form-urlencoded"; private static final String ENTITY_CHARSET = "UTF-8"; /** Identifier of the share to update */ private long mRemoteId; /** Password to set for the public link */ private String mPassword; /** Expiration date to set for the public link */ private long mExpirationDateInMillis; /** * Constructor. No update is initialized by default, need to be applied with setters below. * * @param remoteId Identifier of the share to update. */ public UpdateRemoteShareOperation(long remoteId) { mRemoteId = remoteId; mPassword = null; // no update mExpirationDateInMillis = 0; // no update } /** * Set password to update in Share resource. * * @param password Password to set to the target share. * Empty string clears the current password. * Null results in no update applied to the password. */ public void setPassword(String password) { mPassword = password; } /** * Set expiration date to update in Share resource. * * @param expirationDateInMillis Expiration date to set to the public link. * A negative value clears the current expiration date. * Zero value (start-of-epoch) results in no update done on * the expiration date. */ public void setExpirationDate(long expirationDateInMillis) { mExpirationDateInMillis = expirationDateInMillis; } @Override protected RemoteOperationResult run(OwnCloudClient client) { RemoteOperationResult result = null; int status = -1; /// prepare array of parameters to update List<Pair<String, String>> parametersToUpdate = new ArrayList<Pair<String, String>>(); if (mPassword != null) { parametersToUpdate.add(new Pair<String, String>(PARAM_PASSWORD, mPassword)); } if (mExpirationDateInMillis < 0) { // clear expiration date parametersToUpdate.add(new Pair(PARAM_EXPIRATION_DATE, "")); } else if (mExpirationDateInMillis > 0) { // set expiration date DateFormat dateFormat = new SimpleDateFormat(FORMAT_EXPIRATION_DATE); Calendar expirationDate = Calendar.getInstance(); expirationDate.setTimeInMillis(mExpirationDateInMillis); String formattedExpirationDate = dateFormat.format(expirationDate.getTime()); parametersToUpdate.add(new Pair(PARAM_EXPIRATION_DATE, formattedExpirationDate)); } // else, ignore - no update /* TODO complete rest of parameters if (mPermissions > 0) { parametersToUpdate.add(new Pair("permissions", Integer.toString(mPermissions))); } if (mPublicUpload != null) { parametersToUpdate.add(new Pair("publicUpload", mPublicUpload.toString()); } */ /// perform required PUT requests PutMethod put = null; String uriString = null; try { Uri requestUri = client.getBaseUri(); Uri.Builder uriBuilder = requestUri.buildUpon(); uriBuilder.appendEncodedPath(ShareUtils.SHARING_API_PATH.substring(1)); uriBuilder.appendEncodedPath(Long.toString(mRemoteId)); uriString = uriBuilder.build().toString(); for (Pair<String, String> parameter : parametersToUpdate) { if (put != null) { put.releaseConnection(); } put = new PutMethod(uriString); put.addRequestHeader(OCS_API_HEADER, OCS_API_HEADER_VALUE); put.setRequestEntity(new StringRequestEntity(parameter.first + "=" + parameter.second, ENTITY_CONTENT_TYPE, ENTITY_CHARSET)); status = client.executeMethod(put); if (status == HttpStatus.SC_OK) { String response = put.getResponseBodyAsString(); // Parse xml response ShareToRemoteOperationResultParser parser = new ShareToRemoteOperationResultParser( new ShareXMLParser()); parser.setOwnCloudVersion(client.getOwnCloudVersion()); parser.setServerBaseUri(client.getBaseUri()); result = parser.parse(response); } else { result = new RemoteOperationResult(false, status, put.getResponseHeaders()); } } } catch (Exception e) { result = new RemoteOperationResult(e); Log_OC.e(TAG, "Exception while updating remote share ", e); if (put != null) { put.releaseConnection(); } } finally { if (put != null) { put.releaseConnection(); } } return result; } }