net.kuujo.vertigo.context.impl.InputContextImpl.java Source code

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Here is the source code for net.kuujo.vertigo.context.impl.InputContextImpl.java

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/*
 * Copyright 2014 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 net.kuujo.vertigo.context.impl;

import io.vertx.core.json.JsonObject;
import net.kuujo.vertigo.context.ComponentContext;
import net.kuujo.vertigo.context.InputContext;
import net.kuujo.vertigo.context.InputPortContext;
import net.kuujo.vertigo.context.OutputPortContext;
import net.kuujo.vertigo.util.Args;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * Input context implementation.
 *
 * @author <a href="http://github.com/kuujo">Jordan Halterman</a>
 */
public class InputContextImpl extends BaseContextImpl<InputContext> implements InputContext {
    private ComponentContext component;
    private Map<String, InputPortContext> ports = new HashMap<>();

    @Override
    public ComponentContext component() {
        return component;
    }

    @Override
    public Collection<InputPortContext> ports() {
        return ports.values();
    }

    @Override
    public InputPortContext port(String name) {
        return ports.get(name);
    }

    @Override
    public JsonObject toJson() {
        JsonObject json = new JsonObject();
        ports.forEach((key, port) -> {
            json.put(key, port.toJson());
        });
        return json;
    }

    /**
     * Input context builder.
     */
    public static class Builder implements InputContext.Builder {
        private final InputContextImpl input;

        public Builder() {
            input = new InputContextImpl();
        }

        public Builder(InputContextImpl input) {
            this.input = input;
        }

        @Override
        public Builder addPort(InputPortContext port) {
            Args.checkNotNull(port, "port cannot be null");
            input.ports.put(port.name(), port);
            return this;
        }

        @Override
        public Builder removePort(InputPortContext port) {
            Args.checkNotNull(port, "port cannot be null");
            input.ports.remove(port.name());
            return this;
        }

        @Override
        public Builder setPorts(InputPortContext... ports) {
            input.ports.clear();
            for (InputPortContext port : ports) {
                input.ports.put(port.name(), port);
            }
            return this;
        }

        @Override
        public Builder setPorts(Collection<InputPortContext> ports) {
            Args.checkNotNull(ports, "ports cannot be null");
            input.ports.clear();
            for (InputPortContext port : ports) {
                input.ports.put(port.name(), port);
            }
            return this;
        }

        @Override
        public Builder clearPorts() {
            input.ports.clear();
            return this;
        }

        @Override
        public Builder setComponent(ComponentContext component) {
            Args.checkNotNull(component, "component cannot be null");
            input.component = component;
            return this;
        }

        @Override
        public Builder update(JsonObject config) {
            config.forEach(value -> {
                InputPortContext port = InputPortContext.builder().setInput(input)
                        .update((JsonObject) value.getValue()).build();
                input.ports.put(value.getKey(), port);
            });
            return this;
        }

        @Override
        public InputContextImpl build() {
            return input;
        }
    }

}