/**
* 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.hadoop.gateway.hive;
import org.apache.hadoop.gateway.deploy.DeploymentContext;
import org.apache.hadoop.gateway.deploy.ServiceDeploymentContributorBase;
import org.apache.hadoop.gateway.descriptor.ResourceDescriptor;
import org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteRuleDescriptor;
import org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteRulesDescriptor;
import org.apache.hadoop.gateway.filter.rewrite.ext.UrlRewriteActionRewriteDescriptorExt;
import org.apache.hadoop.gateway.topology.Service;
import java.net.URISyntaxException;
public class HiveDeploymentContributor extends ServiceDeploymentContributorBase {
private static final String ROLE = "HIVE";
private static final String NAME = "hive";
private static final String EXTERNAL_PATH = "/hive";
@Override
public String getRole() {
return ROLE;
}
@Override
public String getName() {
return NAME;
}
@Override
public void contributeService( DeploymentContext context, Service service ) throws Exception {
contributeRewriteRules( context, service );
contributeResources( context, service );
}
private void contributeRewriteRules( DeploymentContext context, Service service ) throws URISyntaxException {
UrlRewriteRulesDescriptor rules = context.getDescriptor( "rewrite" );
UrlRewriteRuleDescriptor rule;
UrlRewriteActionRewriteDescriptorExt rewrite;
rule = rules.addRule( getRole() + "/" + getName() + "/inbound" )
.directions( "inbound" )
.pattern( "*://*:*/**" + EXTERNAL_PATH );
rewrite = rule.addStep( "rewrite" );
rewrite.template( service.getUrl() );
}
public void contributeResources( DeploymentContext context, Service service ) throws URISyntaxException {
ResourceDescriptor rootResource = context.getGatewayDescriptor().addResource();
rootResource.role( service.getRole() );
rootResource.pattern( EXTERNAL_PATH );
addWebAppSecFilters(context, service, rootResource);
addAuthenticationFilter( context, service, rootResource );
addRewriteFilter( context, service, rootResource );
addIdentityAssertionFilter( context, service, rootResource );
addAuthorizationFilter(context, service, rootResource);
addDispatchFilter( context, service, rootResource );
}
private void addRewriteFilter(
DeploymentContext context, Service service, ResourceDescriptor resource ) throws URISyntaxException {
context.contributeFilter( service, resource, "rewrite", null, null );
}
private void addDispatchFilter( DeploymentContext context, Service service, ResourceDescriptor resource ) {
context.contributeFilter( service, resource, "dispatch", "hive", null );
}
}