Java tutorial
package org.eluder.coveralls.maven.plugin.httpclient; /* * #[license] * coveralls-maven-plugin * %% * Copyright (C) 2013 - 2015 Tapio Rautonen * %% * 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. * %[license] */ import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.client.HttpClient; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.ContentType; import org.apache.http.entity.mime.HttpMultipartMode; import org.apache.http.entity.mime.MultipartEntityBuilder; import org.apache.http.impl.client.HttpClientBuilder; import org.codehaus.plexus.util.IOUtil; import org.codehaus.plexus.util.StringUtils; import org.eluder.coveralls.maven.plugin.ProcessingException; import org.eluder.coveralls.maven.plugin.domain.CoverallsResponse; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.security.Provider; import java.security.Security; public class CoverallsClient { static { for (Provider provider : Security.getProviders()) { if (provider.getName().startsWith("SunPKCS11")) { Security.removeProvider(provider.getName()); } } } private static final String FILE_NAME = "coveralls.json"; private static final ContentType MIME_TYPE = ContentType.create("application/octet-stream", "utf-8"); private static final int DEFAULT_CONNECTION_TIMEOUT = 10000; private static final int DEFAULT_SOCKET_TIMEOUT = 60000; private final String coverallsUrl; private final HttpClient httpClient; private final ObjectMapper objectMapper; public CoverallsClient(final String coverallsUrl) { this(coverallsUrl, createDefaultClient(), new ObjectMapper()); } public CoverallsClient(final String coverallsUrl, final HttpClient httpClient, final ObjectMapper objectMapper) { this.coverallsUrl = coverallsUrl; this.httpClient = httpClient; this.objectMapper = objectMapper; } public CoverallsResponse submit(final File file) throws ProcessingException, IOException { HttpEntity entity = MultipartEntityBuilder.create().setMode(HttpMultipartMode.BROWSER_COMPATIBLE) .addBinaryBody("json_file", file, MIME_TYPE, FILE_NAME).build(); HttpPost post = new HttpPost(coverallsUrl); post.setEntity(entity); HttpResponse response = httpClient.execute(post); return parseResponse(response); } private CoverallsResponse parseResponse(final HttpResponse response) throws ProcessingException, IOException { HttpEntity entity = response.getEntity(); ContentType contentType = ContentType.getOrDefault(entity); InputStreamReader reader = null; try { if (response.getStatusLine().getStatusCode() >= HttpStatus.SC_INTERNAL_SERVER_ERROR) { throw new IOException("Coveralls API interal error"); } reader = new InputStreamReader(entity.getContent(), contentType.getCharset()); CoverallsResponse cr = objectMapper.readValue(reader, CoverallsResponse.class); if (cr.isError()) { throw new ProcessingException(getResponseErrorMessage(response, cr.getMessage())); } return cr; } catch (JsonProcessingException ex) { throw new ProcessingException(getResponseErrorMessage(response, ex.getMessage()), ex); } catch (IOException ex) { throw new IOException(getResponseErrorMessage(response, ex.getMessage()), ex); } finally { IOUtil.close(reader); } } private String getResponseErrorMessage(final HttpResponse response, final String message) { int status = response.getStatusLine().getStatusCode(); String reason = response.getStatusLine().getReasonPhrase(); String errorMessage = "Report submission to Coveralls API failed with HTTP status " + status + ":"; if (StringUtils.isNotBlank(reason)) { errorMessage += " " + reason; } if (StringUtils.isNotBlank(message)) { errorMessage += " (" + message + ")"; } return errorMessage; } private static HttpClient createDefaultClient() { RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(DEFAULT_CONNECTION_TIMEOUT) .setSocketTimeout(DEFAULT_SOCKET_TIMEOUT).build(); return HttpClientBuilder.create().setDefaultRequestConfig(requestConfig).build(); } }