| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.slider.core.conf; |
| |
| import org.apache.commons.lang.RandomStringUtils; |
| import org.apache.slider.common.SliderKeys; |
| import org.apache.slider.core.exceptions.BadConfigException; |
| import org.codehaus.jackson.annotate.JsonIgnore; |
| import org.codehaus.jackson.annotate.JsonIgnoreProperties; |
| import org.codehaus.jackson.map.annotate.JsonSerialize; |
| |
| import java.io.IOException; |
| |
| /** |
| * Aggregate Configuration. |
| * |
| * It is serializable to JSON |
| */ |
| @JsonIgnoreProperties(ignoreUnknown = true) |
| @JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL) |
| public final class AggregateConf { |
| |
| private String name; |
| private ConfTree resources; |
| private ConfTree internal; |
| private ConfTree appConf; |
| |
| private ConfTreeOperations resourceOperations; |
| private ConfTreeOperations appConfOperations; |
| private ConfTreeOperations internalOperations; |
| |
| private String passphrase; |
| |
| public AggregateConf() { |
| this(new ConfTree(), new ConfTree(), new ConfTree()); |
| } |
| |
| public AggregateConf(String name) { |
| this(new ConfTree(), new ConfTree(), new ConfTree()); |
| this.name = name; |
| } |
| |
| public AggregateConf(ConfTree resources, |
| ConfTree appConf, |
| ConfTree internal) { |
| setResources(resources); |
| setAppConf(appConf); |
| setInternal(internal); |
| } |
| |
| /** |
| * Take a snapshot of the configuration |
| * @param instanceDefinition source |
| * @throws IOException marshalling/copying problems |
| */ |
| public AggregateConf(AggregateConf instanceDefinition) throws IOException { |
| ConfTreeOperations resourcesSnapshot = |
| ConfTreeOperations.fromInstance(instanceDefinition.getResources()); |
| ConfTreeOperations appConfSnapshot = |
| ConfTreeOperations.fromInstance(instanceDefinition.getAppConf()); |
| ConfTreeOperations internalsSnapshot = |
| ConfTreeOperations.fromInstance(instanceDefinition.getInternal()); |
| //build a new aggregate from the snapshots |
| setResources(resourcesSnapshot.confTree); |
| setAppConf(appConfSnapshot.confTree); |
| setInternal(internalsSnapshot.confTree); |
| } |
| |
| public void setResources(ConfTree resources) { |
| this.resources = resources; |
| resourceOperations = new ConfTreeOperations(resources); |
| } |
| |
| public void setAppConf(ConfTree appConf) { |
| this.appConf = appConf; |
| appConfOperations = new ConfTreeOperations(appConf); |
| } |
| |
| public ConfTree getInternal() { |
| return internal; |
| } |
| |
| public void setInternal(ConfTree internal) { |
| this.internal = internal; |
| internalOperations = new ConfTreeOperations(internal); |
| } |
| |
| public ConfTree getResources() { |
| return resources; |
| } |
| |
| public ConfTree getAppConf() { |
| return appConf; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| @JsonIgnore |
| public ConfTreeOperations getResourceOperations() { |
| return resourceOperations; |
| } |
| |
| |
| @JsonIgnore |
| public ConfTreeOperations getAppConfOperations() { |
| return appConfOperations; |
| } |
| |
| @JsonIgnore |
| public ConfTreeOperations getInternalOperations() { |
| return internalOperations; |
| } |
| |
| /** |
| * predicate to query if all sections have data structures |
| * @return true if every section is non-null |
| */ |
| @JsonIgnore |
| public boolean isComplete() { |
| return resources != null && appConf != null && internal != null; |
| } |
| |
| public void validate() throws BadConfigException { |
| if (!isComplete()) { |
| throw new BadConfigException("Incomplete instance %s", this); |
| } |
| resourceOperations.validate(); |
| internalOperations.validate(); |
| appConfOperations.validate(); |
| } |
| |
| public void resolve() throws BadConfigException { |
| validate(); |
| resourceOperations.resolve(); |
| internalOperations.resolve(); |
| appConfOperations.resolve(); |
| } |
| |
| @JsonIgnore |
| public String getPassphrase() { |
| if (passphrase == null) { |
| passphrase = RandomStringUtils.randomAlphanumeric( |
| Integer.valueOf(SliderKeys.PASS_LEN)); |
| } |
| |
| return passphrase; |
| } |
| |
| /** |
| * string operation includes all the inner conftrees |
| * @return a string description |
| */ |
| @Override |
| public String toString() { |
| final StringBuilder sb = |
| new StringBuilder("{"); |
| sb.append(",\n\"internal\": ").append(internal); |
| sb.append(",\n\"resources\": ").append(resources); |
| sb.append(",\n\"appConf\" :").append(appConf); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| } |