Java tutorial
/* * Copyright 2011 ingenieux Labs * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package br.com.ingenieux.jenkins.plugins.awsebdeployment; import com.amazonaws.AmazonWebServiceClient; import com.amazonaws.ClientConfiguration; import com.amazonaws.auth.AWSCredentialsProvider; import com.amazonaws.auth.AWSCredentialsProviderChain; import com.amazonaws.auth.BasicAWSCredentials; import com.amazonaws.auth.DefaultAWSCredentialsProviderChain; import com.amazonaws.internal.StaticCredentialsProvider; import com.amazonaws.services.elasticbeanstalk.AWSElasticBeanstalk; import com.amazonaws.services.s3.AmazonS3; import com.cloudbees.jenkins.plugins.awscredentials.AmazonWebServicesCredentials; import com.cloudbees.plugins.credentials.CredentialsMatchers; import com.cloudbees.plugins.credentials.CredentialsProvider; import com.cloudbees.plugins.credentials.domains.DomainRequirement; import hudson.ProxyConfiguration; import org.apache.commons.lang.reflect.ConstructorUtils; import org.apache.commons.lang.reflect.FieldUtils; import java.lang.reflect.InvocationTargetException; import java.net.URI; import java.util.Collections; import java.util.List; import javax.security.auth.login.CredentialNotFoundException; import hudson.security.ACL; import jenkins.model.Jenkins; import static org.apache.commons.lang.StringUtils.defaultString; import static org.apache.commons.lang.StringUtils.isNotBlank; public class AWSClientFactory implements Constants { private AWSCredentialsProvider creds; private ClientConfiguration clientConfiguration; private String region; private AWSClientFactory(AWSCredentialsProvider creds, ClientConfiguration clientConfiguration, String region) { this.creds = creds; this.clientConfiguration = clientConfiguration; this.region = region.toLowerCase(); } public static AWSClientFactory getClientFactory(AmazonWebServicesCredentials cred, String awsRegion) { AWSCredentialsProvider credentials = new DefaultAWSCredentialsProviderChain(); if (null != cred) { credentials = new AWSCredentialsProviderChain(new StaticCredentialsProvider(new BasicAWSCredentials( cred.getCredentials().getAWSAccessKeyId(), cred.getCredentials().getAWSSecretKey()))); } ClientConfiguration clientConfig = new ClientConfiguration(); Jenkins jenkins = Jenkins.getInstance(); if (jenkins != null && jenkins.proxy != null) { ProxyConfiguration proxyConfig = jenkins.proxy; clientConfig.setProxyHost(proxyConfig.name); clientConfig.setProxyPort(proxyConfig.port); if (proxyConfig.getUserName() != null) { clientConfig.setProxyUsername(proxyConfig.getUserName()); clientConfig.setProxyPassword(proxyConfig.getPassword()); } } clientConfig.setUserAgent("ingenieux CloudButler/" + Utils.getVersion()); return new AWSClientFactory(credentials, clientConfig, awsRegion); } public static AWSClientFactory getClientFactory(String credentialsId, String awsRegion) throws CredentialNotFoundException { AmazonWebServicesCredentials cred = null; if (isNotBlank(credentialsId)) { cred = lookupNamedCredential(credentialsId); } return getClientFactory(cred, awsRegion); } public static AmazonWebServicesCredentials lookupNamedCredential(String credentialsId) throws CredentialNotFoundException { List<AmazonWebServicesCredentials> credentialList = CredentialsProvider.lookupCredentials( AmazonWebServicesCredentials.class, Jenkins.getInstance(), ACL.SYSTEM, Collections.<DomainRequirement>emptyList()); AmazonWebServicesCredentials cred = CredentialsMatchers.firstOrNull(credentialList, CredentialsMatchers.allOf(CredentialsMatchers.withId(credentialsId))); if (cred == null) { throw new CredentialNotFoundException(credentialsId); } return cred; } @SuppressWarnings("unchecked") public <T> T getService(Class<T> serviceClazz) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException { Class<?> paramTypes[] = new Class<?>[] { AWSCredentialsProvider.class, ClientConfiguration.class }; ClientConfiguration newClientConfiguration = new ClientConfiguration(this.clientConfiguration); if (AmazonS3.class.isAssignableFrom(serviceClazz)) { newClientConfiguration = newClientConfiguration.withSignerOverride("AWSS3V4SignerType"); } else { newClientConfiguration = newClientConfiguration.withSignerOverride(null); } Object params[] = new Object[] { creds, newClientConfiguration }; T resultObj = (T) ConstructorUtils.invokeConstructor(serviceClazz, params, paramTypes); if (DEFAULT_REGION.equals(defaultString(region, DEFAULT_REGION))) { return resultObj; } else { for (ServiceEndpointFormatter formatter : ServiceEndpointFormatter.values()) { if (formatter.matches(resultObj)) { ((AmazonWebServiceClient) resultObj).setEndpoint(getEndpointFor(formatter)); break; } } } return resultObj; } protected String getEndpointFor(ServiceEndpointFormatter formatter) { return String.format(formatter.serviceMask, region); } public <T extends AmazonWebServiceClient> String getEndpointFor(T client) { try { URI endpointUri = (URI) FieldUtils.readField(client, "endpoint", true); return endpointUri.toASCIIString(); } catch (Exception e) { return null; } } private enum ServiceEndpointFormatter { ELASTICBEANSTALK(AWSElasticBeanstalk.class, "elasticbeanstalk.%s.amazonaws.com"), S3(AmazonS3.class, "s3-%s.amazonaws.com"); final Class<?> serviceClass; final String serviceMask; ServiceEndpointFormatter(Class<?> serviceClass, String serviceMask) { this.serviceClass = serviceClass; this.serviceMask = serviceMask; } public boolean matches(Object obj) { return serviceClass.isAssignableFrom(obj.getClass()); } } }