#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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.
 */
package ${package};

import io.gravitee.gateway.api.Request;
import io.gravitee.gateway.api.Response;
import io.gravitee.gateway.api.policy.PolicyChain;
import io.gravitee.gateway.api.policy.annotations.OnRequest;
import io.gravitee.gateway.api.policy.annotations.OnResponse;

/**
 * TODO put a detailed documentation on what is a Policy and how to define a new one
 */
@SuppressWarnings("unused")
public class ${policyName} {

    /**
     * The associated configuration to this ${policyName}
     */
    private ${policyName}Configuration configuration;

    /**
     * Create a new ${policyName} instance based on its associated configuration
     *
     * @param configuration the associated configuration to the new ${policyName} instance
     */
    public ${policyName}(${policyName}Configuration configuration) {
        this.configuration = configuration;
    }

    @OnRequest
    public void onRequest(Request request, Response response, PolicyChain policyChain) {
        // Add a dummy header
        request.headers().put("X-DummyHeader", "Dummy header value");

        // Finally continue chaining
        policyChain.doNext(request, response);
    }

    @OnResponse
    public void onResponse(Request request, Response response, PolicyChain policyChain) {
        if (isASuccessfulResponse(response)) {
            policyChain.doNext(request, response);
        } else {
            policyChain.doError(new RuntimeException("Not a successful response"));
        }
    }

    private static boolean isASuccessfulResponse(Response response) {
        switch (response.status() / 100) {
            case 1:
            case 2:
            case 3:
                return true;
            default:
                return false;
        }
    }

}

#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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.
 */
package ${package};

import io.gravitee.gateway.api.Request;
import io.gravitee.gateway.api.Response;
import io.gravitee.gateway.api.policy.PolicyChain;
import io.gravitee.gateway.api.policy.annotations.OnRequest;
import io.gravitee.gateway.api.policy.annotations.OnResponse;

/**
 * TODO put a detailed documentation on what is a Policy and how to define a new one
 */
@SuppressWarnings("unused")
public class ${policyName} {

    /**
     * The associated configuration to this ${policyName}
     */
    private ${policyName}Configuration configuration;

    /**
     * Create a new ${policyName} instance based on its associated configuration
     *
     * @param configuration the associated configuration to the new ${policyName} instance
     */
    public ${policyName}(${policyName}Configuration configuration) {
        this.configuration = configuration;
    }

    @OnRequest
    public void onRequest(Request request, Response response, PolicyChain policyChain) {
        // Add a dummy header
        request.headers().put("X-DummyHeader", "Dummy header value");

        // Finally continue chaining
        policyChain.doNext(request, response);
    }

    @OnResponse
    public void onResponse(Request request, Response response, PolicyChain policyChain) {
        if (isASuccessfulResponse(response)) {
            policyChain.doNext(request, response);
        } else {
            policyChain.sendError(new RuntimeException("Not a successful response"));
        }
    }

    private static boolean isASuccessfulResponse(Response response) {
        switch (response.status() / 100) {
            case 1:
            case 2:
            case 3:
                return true;
            default:
                return false;
        }
    }

}

apply PolicyChain changes