Java tutorial
/* * Copyright (c) 2002-2016, Mairie de Paris * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright notice * and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice * and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * License 1.0 */ package fr.paris.lutece.plugins.librarynotifygru.services; import com.fasterxml.jackson.databind.ObjectMapper; import fr.paris.lutece.plugins.librarynotifygru.exception.NotifyGruException; import fr.paris.lutece.util.httpaccess.HttpAccess; import fr.paris.lutece.util.httpaccess.HttpAccessException; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.ws.rs.core.HttpHeaders; import javax.ws.rs.core.MediaType; /** * IHttpTransportProvider which use library-httpaccess */ public class HttpAccessTransport implements IHttpTransportProvider { /** The Constant CONTENT_FORMAT. */ // CONTENT FORMAT public static final String CONTENT_FORMAT_CHARSET = "application/json; charset=utf-8"; private static Logger _logger = Logger.getLogger(HttpAccessTransport.class); /** * {@inheritDoc} */ @Override public String doPost(String strUrl, Map<String, String> mapParams, Map<String, String> mapHeadersRequest) { HttpAccess clientHttp = new HttpAccess(); Map<String, String> mapHeadersResponse = new HashMap<String, String>(); String strOutput = StringUtils.EMPTY; try { strOutput = clientHttp.doPost(strUrl, mapParams, null, null, mapHeadersRequest, mapHeadersResponse); } catch (HttpAccessException e) { String strError = "LibraryNotifyGru - Error HttpAccessTransport.doPost on URL [" + strUrl + "] : "; _logger.error(strError + e.getMessage(), e); throw new NotifyGruException(strError, e); } return strOutput; } /** * {@inheritDoc} */ @Override public <T> T doPostJSON(String strUrl, Map<String, String> mapParams, Map<String, String> mapHeadersRequest, Object json, Class<T> responseJsonClass, ObjectMapper mapper) { HttpAccess clientHttp = new HttpAccess(); Map<String, String> mapHeadersResponse = new HashMap<String, String>(); mapHeadersRequest.put(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON); mapHeadersRequest.put(HttpHeaders.CONTENT_TYPE, CONTENT_FORMAT_CHARSET); try { String strJSON = mapper.writeValueAsString(json); String strResponseJSON = clientHttp.doPostJSON(strUrl, strJSON, mapHeadersRequest, mapHeadersResponse); T oResponse = mapper.readValue(strResponseJSON, responseJsonClass); return oResponse; } catch (HttpAccessException e) { String strError = "LibraryNotifyGru - Error HttpAccessTransport.doPostJSON on URL [" + strUrl + "] : "; _logger.error(strError + e.getMessage(), e); throw new NotifyGruException(strError, e); } catch (IOException e) { String strError = "LibraryNotifyGru - Error HttpAccessTransport.doPostJSON on JSON manipulation :"; _logger.error(strError + e.getMessage(), e); throw new NotifyGruException(strError, e); } } }