| /** |
| * 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.camel.component.etcd; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import mousio.etcd4j.EtcdClient; |
| import mousio.etcd4j.requests.EtcdKeyDeleteRequest; |
| import mousio.etcd4j.requests.EtcdKeyGetRequest; |
| import mousio.etcd4j.requests.EtcdKeyPutRequest; |
| import mousio.etcd4j.requests.EtcdRequest; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.ExchangeTimedOutException; |
| import org.apache.camel.util.ObjectHelper; |
| |
| public class EtcdKeysProducer extends AbstractEtcdProducer { |
| private final EtcdConfiguration configuration; |
| |
| public EtcdKeysProducer(EtcdKeysEndpoint endpoint, EtcdConfiguration configuration, EtcdNamespace namespace, String path) { |
| super(endpoint, configuration, namespace, path); |
| |
| this.configuration = configuration; |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| String action = exchange.getIn().getHeader(EtcdConstants.ETCD_ACTION, String.class); |
| String path = exchange.getIn().getHeader(EtcdConstants.ETCD_PATH, String.class); |
| if (path == null) { |
| path = getPath(); |
| } |
| |
| ObjectHelper.notEmpty(path, EtcdConstants.ETCD_PATH); |
| ObjectHelper.notEmpty(action, EtcdConstants.ETCD_ACTION); |
| |
| switch(action) { |
| case EtcdConstants.ETCD_KEYS_ACTION_SET: |
| processSet(getClient(), path, exchange); |
| break; |
| case EtcdConstants.ETCD_KEYS_ACTION_GET: |
| processGet(getClient(), path, exchange); |
| break; |
| case EtcdConstants.ETCD_KEYS_ACTION_DELETE: |
| processDel(getClient(), path, false, exchange); |
| break; |
| case EtcdConstants.ETCD_KEYS_ACTION_DELETE_DIR: |
| processDel(getClient(), path, true, exchange); |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown action " + action); |
| } |
| } |
| |
| // ************************************************************************* |
| // Processors |
| // ************************************************************************* |
| |
| private void processSet(EtcdClient client, String path, Exchange exchange) throws Exception { |
| EtcdKeyPutRequest request = client.put(path, exchange.getIn().getBody(String.class)); |
| setRequestTimeToLive(request, exchange); |
| setRequestTimeout(request, exchange); |
| |
| try { |
| exchange.getIn().setHeader(EtcdConstants.ETCD_NAMESPACE, getNamespace()); |
| exchange.getIn().setBody(request.send().get()); |
| } catch (TimeoutException e) { |
| throw new ExchangeTimedOutException(exchange, configuration.getTimeout()); |
| } |
| } |
| |
| private void processGet(EtcdClient client, String path, Exchange exchange) throws Exception { |
| EtcdKeyGetRequest request = client.get(path); |
| setRequestTimeout(request, exchange); |
| setRequestRecursive(request, exchange); |
| |
| try { |
| exchange.getIn().setHeader(EtcdConstants.ETCD_NAMESPACE, getNamespace()); |
| exchange.getIn().setBody(request.send().get()); |
| } catch (TimeoutException e) { |
| throw new ExchangeTimedOutException(exchange, configuration.getTimeout()); |
| } |
| } |
| |
| private void processDel(EtcdClient client, String path, boolean dir, Exchange exchange) throws Exception { |
| EtcdKeyDeleteRequest request = client.delete(path); |
| setRequestTimeout(request, exchange); |
| setRequestRecursive(request, exchange); |
| |
| if (dir) { |
| request.dir(); |
| } |
| |
| try { |
| exchange.getIn().setHeader(EtcdConstants.ETCD_NAMESPACE, getNamespace()); |
| exchange.getIn().setBody(request.send().get()); |
| } catch (TimeoutException e) { |
| throw new ExchangeTimedOutException(exchange, configuration.getTimeout()); |
| } |
| } |
| |
| private void setRequestTimeout(EtcdRequest<?> request, Exchange exchange) { |
| Long timeout = exchange.getIn().getHeader(EtcdConstants.ETCD_TIMEOUT, Long.class); |
| if (timeout != null) { |
| request.timeout(timeout, TimeUnit.MILLISECONDS); |
| } else if (configuration.getTimeout() != null) { |
| request.timeout(configuration.getTimeout(), TimeUnit.MILLISECONDS); |
| } |
| } |
| |
| private void setRequestTimeToLive(EtcdKeyPutRequest request, Exchange exchange) { |
| Integer ttl = exchange.getIn().getHeader(EtcdConstants.ETCD_TTL, Integer.class); |
| if (ttl != null) { |
| request.ttl(ttl); |
| } else if (configuration.getTimeToLive() != null) { |
| request.ttl(configuration.getTimeToLive()); |
| } |
| } |
| |
| private void setRequestRecursive(EtcdKeyGetRequest request, Exchange exchange) { |
| if (isRecursive(exchange)) { |
| request.recursive(); |
| } |
| } |
| |
| private void setRequestRecursive(EtcdKeyDeleteRequest request, Exchange exchange) { |
| if (isRecursive(exchange)) { |
| request.recursive(); |
| } |
| } |
| |
| private boolean isRecursive(Exchange exchange) { |
| Boolean recursive = exchange.getIn().getHeader(EtcdConstants.ETCD_RECURSIVE, Boolean.class); |
| if (recursive != null) { |
| return recursive; |
| } |
| |
| return configuration.isRecursive(); |
| } |
| } |