com.twitter.hbc.core.endpoint.RawEndpoint.java Source code

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Here is the source code for com.twitter.hbc.core.endpoint.RawEndpoint.java

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/**
 * Copyright 2013 Twitter, Inc.
 * 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 com.twitter.hbc.core.endpoint;

import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.google.common.collect.Maps;
import com.twitter.hbc.core.HttpConstants;
import com.twitter.joauth.UrlCodec;

import java.util.Collections;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;

/**
 * A convenience class for users that want to hit an arbitrary endpoint w/o having to implement
 * their own Endpoint
 */
public class RawEndpoint implements StreamingEndpoint {

    private final String uri;
    private final String httpMethod;
    private final ConcurrentMap<String, String> postParams;
    private final ConcurrentMap<String, String> queryParameters;

    /**
     * @param uri should be the full uri, including the starting "/" and the api version, and any query params
     */
    public RawEndpoint(String uri, String httpMethod) {
        this(uri, httpMethod, Collections.<String, String>emptyMap());
    }

    /**
     * @param uri        should be the full uri, including the starting "/" and the api version, and any query params.
     * @param postParams any http POST parameters (not encoded)
     */
    public RawEndpoint(String uri, String httpMethod, Map<String, String> postParams) {
        this.uri = Preconditions.checkNotNull(uri);
        this.httpMethod = Preconditions.checkNotNull(httpMethod);
        Preconditions.checkArgument(HttpConstants.checkHttpMethod(httpMethod));
        Preconditions.checkNotNull(postParams);
        this.postParams = Maps.newConcurrentMap();
        this.queryParameters = Maps.newConcurrentMap();
        postParams.putAll(postParams);
    }

    /**
     * These don't do anything
     */
    @Override
    public void setBackfillCount(int count) {
    }

    @Override
    public void setApiVersion(String apiVersion) {
    }

    @Override
    public String getURI() {
        if (queryParameters.isEmpty()) {
            return this.uri;
        } else {
            return this.uri + "?" + generateParamString(queryParameters);
        }
    }

    @Override
    public String getHttpMethod() {
        return this.httpMethod;
    }

    @Override
    public String getPostParamString() {
        return Joiner.on("&").withKeyValueSeparator("=").join(postParams);
    }

    @Override
    public void addPostParameter(String param, String value) {
        postParams.put(UrlCodec.encode(param), UrlCodec.encode(value));
    }

    @Override
    public void removePostParameter(String param) {
        postParams.remove(UrlCodec.encode(param));
    }

    @Override
    public String getQueryParamString() {
        return generateParamString(queryParameters);
    }

    @Override
    public void addQueryParameter(String param, String value) {
        queryParameters.put(param, value);
    }

    @Override
    public void removeQueryParameter(String param) {
        queryParameters.remove(param);
    }

    private String generateParamString(Map<String, String> params) {
        return Joiner.on("&").withKeyValueSeparator("=").join(params);
    }
}