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Merge pull request #127 from andreisavu/issue-127
Refactor templates (remove the need for Java code)
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101 changes: 0 additions & 101 deletions
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core/src/main/java/com/axemblr/provisionr/core/templates/ClouderaCDH3Template.java
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core/src/main/java/com/axemblr/provisionr/core/templates/JenkinsTemplate.java
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core/src/main/java/com/axemblr/provisionr/core/templates/PoolTemplateInstaller.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| /* | ||
| * Copyright (c) 2012 S.C. Axemblr Software Solutions S.R.L | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package com.axemblr.provisionr.core.templates; | ||
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| import com.axemblr.provisionr.core.templates.xml.XmlTemplate; | ||
| import static com.google.common.base.Preconditions.checkNotNull; | ||
| import com.google.common.collect.Maps; | ||
| import java.io.File; | ||
| import java.util.concurrent.ConcurrentMap; | ||
| import org.apache.felix.fileinstall.ArtifactInstaller; | ||
| import org.osgi.framework.BundleContext; | ||
| import org.osgi.framework.ServiceRegistration; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| /** | ||
| * Listener for pool template files | ||
| * <p/> | ||
| * When a new xml file is places under templates this class is | ||
| * notified and a new pool template is registered as a service | ||
| */ | ||
| public class PoolTemplateInstaller implements ArtifactInstaller { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(PoolTemplateInstaller.class); | ||
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| public static final String TEMPLATES_FOLDER = "templates"; | ||
| public static final String TEMPLATES_EXTENSION = ".xml"; | ||
|
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| /** | ||
| * A bundle context provided by the OSGi framework | ||
| */ | ||
| private final BundleContext bundleContext; | ||
|
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| /** | ||
| * A map with all the pool templates registered by this listener | ||
| */ | ||
| private final ConcurrentMap<String, ServiceRegistration> templates; | ||
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| public PoolTemplateInstaller(BundleContext bundleContext) { | ||
| this.bundleContext = checkNotNull(bundleContext, "bundleContext is null"); | ||
| this.templates = Maps.newConcurrentMap(); | ||
| } | ||
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| @Override | ||
| public boolean canHandle(File file) { | ||
| return TEMPLATES_FOLDER.equals(file.getParentFile().getName()) | ||
| && file.getName().endsWith(TEMPLATES_EXTENSION); | ||
| } | ||
|
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| /** | ||
| * Install a new pool template as a service using the file content | ||
| * <p/> | ||
| * The absolute file path is the unique identifier | ||
| */ | ||
| @Override | ||
| public void install(File file) throws Exception { | ||
| final String absolutePath = file.getAbsolutePath(); | ||
| LOG.info("Installing Pool template from " + absolutePath); | ||
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| if (!templates.containsKey(absolutePath)) { | ||
| PoolTemplate template = XmlTemplate.newXmlTemplate(file); | ||
| ServiceRegistration registration = bundleContext | ||
| .registerService(PoolTemplate.class.getName(), template, null); | ||
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| templates.put(absolutePath, registration); | ||
| LOG.info("Registered new template with ID: " + template.getId()); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Uninstall a pool description identified by the absolute file path | ||
| */ | ||
| @Override | ||
| public void uninstall(File file) throws Exception { | ||
| final String absolutePath = file.getAbsolutePath(); | ||
| LOG.info("Uninstalling Pool template for path " + absolutePath); | ||
|
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| if (templates.containsKey(absolutePath)) { | ||
| templates.remove(absolutePath).unregister(); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Update a pool template | ||
| * <p/> | ||
| * This method performs no actions if there is no pool registered for this file | ||
| */ | ||
| @Override | ||
| public void update(File file) throws Exception { | ||
| if (templates.containsKey(file.getAbsolutePath())) { | ||
| uninstall(file); | ||
| install(file); | ||
| } | ||
| } | ||
| } |
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