package br.com.ingenieux.mojo.beanstalk.config;
/*
* 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.
*/
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import br.com.ingenieux.mojo.beanstalk.AbstractBeanstalkMojo;
import com.amazonaws.services.elasticbeanstalk.model.ApplicationDescription;
import com.amazonaws.services.elasticbeanstalk.model.ConfigurationOptionSetting;
import com.amazonaws.services.elasticbeanstalk.model.ConfigurationSettingsDescription;
import com.amazonaws.services.elasticbeanstalk.model.DescribeApplicationsRequest;
import com.amazonaws.services.elasticbeanstalk.model.DescribeApplicationsResult;
import com.amazonaws.services.elasticbeanstalk.model.DescribeConfigurationSettingsRequest;
import com.amazonaws.services.elasticbeanstalk.model.DescribeConfigurationSettingsResult;
/**
* Describes Available Configuration Templates
*
* @goal describe-configuration-templates
*
* @author Aldrin Leal
*/
public class DescribeConfigurationTemplatesMojo extends AbstractBeanstalkMojo {
private static final String ENDL = System.getProperty("line.separator");
/**
* Beanstalk Application Name
*
* @parameter expression="${beanstalk.applicationName}"
* default-value="${project.artifactId}"
* @required
*/
String applicationName;
/**
* Configuration Template Name (Optional)
*
* @parameter expression="${beanstalk.configurationTemplate}"
*/
String configurationTemplate;
/**
* Output file (Optional)
*
* @parameter expression="${beanstalk.outputFile}"
*/
File outputFile;
@Override
protected Object executeInternal() throws MojoExecutionException,
MojoFailureException {
DescribeApplicationsRequest req = new DescribeApplicationsRequest()
.withApplicationNames(applicationName);
boolean bConfigurationTemplateDefined = StringUtils
.isNotBlank(configurationTemplate);
DescribeApplicationsResult apps = service.describeApplications(req);
List<ApplicationDescription> applications = apps.getApplications();
if (applications.isEmpty()) {
String errorMessage = "Application ('" + applicationName
+ "') not found!";
getLog().warn(errorMessage);
throw new MojoFailureException(errorMessage);
}
ApplicationDescription desc = applications.get(0);
List<String> configTemplates = desc.getConfigurationTemplates();
if (bConfigurationTemplateDefined) {
describeConfigurationTemplate(configurationTemplate);
} else {
for (String availConfigTemplate : configTemplates)
describeConfigurationTemplate(availConfigTemplate);
}
return null;
}
void describeConfigurationTemplate(String configTemplateName) {
DescribeConfigurationSettingsRequest req = new DescribeConfigurationSettingsRequest()
.withApplicationName(applicationName).withTemplateName(
configTemplateName);
DescribeConfigurationSettingsResult configSettings = service.describeConfigurationSettings(req);
List<String> buf = new ArrayList<String>();
buf.add("<optionSettings>");
for (ConfigurationSettingsDescription configSetting : configSettings.getConfigurationSettings()) {
for (ConfigurationOptionSetting setting : configSetting.getOptionSettings()) {
buf.add(" <optionSetting>");
buf.add(String.format(" <%s>%s</%1$s>", "namespace", setting.getNamespace()));
buf.add(String.format(" <%s>%s</%1$s>", "optionName", setting.getOptionName()));
buf.add(String.format(" <%s>%s</%1$s>", "value", setting.getValue()));
buf.add(" </optionSetting>");
}
}
buf.add("</optionSettings>");
if (null != outputFile) {
getLog().info("Dumping results to file: " + outputFile.getName());
String bufChars = StringUtils.join(buf.iterator(), ENDL);
FileWriter writer = null;
try {
writer = new FileWriter(outputFile);
IOUtils.copy(new StringReader(bufChars), writer);
} catch (IOException e) {
throw new RuntimeException("Failure when writing to file: " + outputFile.getName(), e);
} finally {
IOUtils.closeQuietly(writer);
}
} else {
getLog().info("Dumping results to stdout");
for (String e : buf)
getLog().info(e);
}
}
}