org.springframework.cloud.stream.endpoint.ChannelsEndpoint.java Source code

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Here is the source code for org.springframework.cloud.stream.endpoint.ChannelsEndpoint.java

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/*
 * Copyright 2015-2016 the original author or authors.
 *
 * 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 org.springframework.cloud.stream.endpoint;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import org.springframework.boot.actuate.endpoint.AbstractEndpoint;
import org.springframework.boot.actuate.endpoint.Endpoint;
import org.springframework.cloud.stream.binding.Bindable;
import org.springframework.cloud.stream.config.BindingProperties;
import org.springframework.cloud.stream.config.BindingServiceProperties;

/**
 * An {@link Endpoint} that has the binding information on all the {@link Bindable}
 * message channels.
 *
 * @author Dave Syer
 * @author Ilayaperumal Gopinathan
 */
public class ChannelsEndpoint extends AbstractEndpoint<Map<String, Object>> {

    private List<Bindable> adapters;

    private BindingServiceProperties properties;

    public ChannelsEndpoint(List<Bindable> adapters, BindingServiceProperties properties) {
        super("channels");
        this.adapters = adapters;
        this.properties = properties;
    }

    @Override
    public Map<String, Object> invoke() {
        ChannelsMetaData map = new ChannelsMetaData();
        Map<String, BindingProperties> inputs = map.getInputs();
        Map<String, BindingProperties> outputs = map.getOutputs();
        for (Bindable factory : this.adapters) {
            for (String name : factory.getInputs()) {
                inputs.put(name, this.properties.getBindingProperties(name));
            }
            for (String name : factory.getOutputs()) {
                outputs.put(name, this.properties.getBindingProperties(name));
            }
        }
        return new ObjectMapper().convertValue(map, new TypeReference<Map<String, Object>>() {
        });
    }

    @JsonInclude(Include.NON_DEFAULT)
    public static class ChannelsMetaData {

        private Map<String, BindingProperties> inputs = new LinkedHashMap<>();

        private Map<String, BindingProperties> outputs = new LinkedHashMap<>();

        public Map<String, BindingProperties> getInputs() {
            return this.inputs;
        }

        public Map<String, BindingProperties> getOutputs() {
            return this.outputs;
        }
    }

}