Java tutorial
/* * Copyright 2007 Yusuke Yamamoto * * 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 eshioji.java8.twitter; import com.google.common.base.Joiner; import com.google.common.primitives.Longs; import com.ning.http.client.AsyncHttpClient; import java.util.Arrays; /** * @author Yusuke Yamamoto - yusuke at mac.com * @since Twitter4J 2.1.2 */ public final class FilterQuery implements java.io.Serializable { private static final long serialVersionUID = -142808200594318258L; private int count; private long[] follow; private String[] track; private double[][] locations; private String[] language; /** * Creates a new FilterQuery */ public FilterQuery() { this.count = 0; this.follow = null; this.track = null; this.locations = null; this.language = null; } /** * Creates a new FilterQuery * * @param follow Specifies the users, by ID, to receive public tweets from. */ public FilterQuery(long[] follow) { this(); this.count = 0; this.follow = follow; } /** * Creates a new FilterQuery * * @param count Indicates the number of previous statuses to stream before transitioning to the live stream. * @param follow Specifies the users, by ID, to receive public tweets from. */ public FilterQuery(int count, long[] follow) { this(); this.count = count; this.follow = follow; } /** * Creates a new FilterQuery * * @param count Indicates the number of previous statuses to stream before transitioning to the live stream. * @param follow Specifies the users, by ID, to receive public tweets from. * @param track Specifies keywords to track. */ public FilterQuery(int count, long[] follow, String[] track) { this(); this.count = count; this.follow = follow; this.track = track; } /** * Creates a new FilterQuery * * @param count Indicates the number of previous statuses to stream before transitioning to the live stream. * @param follow Specifies the users, by ID, to receive public tweets from. * @param track Specifies keywords to track. * @param locations Specifies the locations to track. 2D array */ public FilterQuery(int count, long[] follow, String[] track, double[][] locations) { this.count = count; this.follow = follow; this.track = track; this.locations = locations; } /** * Creates a new FilterQuery * * @param count Indicates the number of previous statuses to stream before transitioning to the live stream. * @param follow Specifies the users, by ID, to receive public tweets from. * @param track Specifies keywords to track. * @param locations Specifies the locations to track. 2D array * @param language Specifies the tweets language of the stream */ public FilterQuery(int count, long[] follow, String[] track, double[][] locations, String[] language) { this.count = count; this.follow = follow; this.track = track; this.language = language; } /** * Sets count * * @param count Indicates the number of previous statuses to stream before transitioning to the live stream. * @return this instance */ public FilterQuery count(int count) { this.count = count; return this; } /** * Sets follow * * @param follow Specifies the users, by ID, to receive public tweets from. * @return this instance */ public FilterQuery follow(long[] follow) { this.follow = follow; return this; } /** * Sets track * * @param track Specifies keywords to track. * @return this instance */ public FilterQuery track(String[] track) { this.track = track; return this; } /** * Sets locations * * @param locations Specifies the locations to track. 2D array * @return this instance */ public FilterQuery locations(double[][] locations) { this.locations = locations; return this; } /** * Sets language * * @param language Specifies languages to track. * @return this instance */ public FilterQuery language(String[] language) { this.language = language; return this; } private static final Joiner ON_COMMA = Joiner.on(','); public void populate(AsyncHttpClient.BoundRequestBuilder req) { req.addParameter("count", count + ""); if (follow != null && follow.length > 0) { req.addParameter("follow", ON_COMMA.join(Longs.asList(follow))); } if (track != null && track.length > 0) { req.addParameter("track", ON_COMMA.join(track)); } if (locations != null && locations.length > 0) { req.addParameter("locations", toLocationsString(locations)); } if (language != null && language.length > 0) { req.addParameter("language", ON_COMMA.join(language)); } } private String toLocationsString(final double[][] keywords) { final StringBuilder buf = new StringBuilder(20 * keywords.length * 2); for (double[] keyword : keywords) { if (0 != buf.length()) { buf.append(","); } buf.append(keyword[0]); buf.append(","); buf.append(keyword[1]); } return buf.toString(); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; FilterQuery that = (FilterQuery) o; if (count != that.count) return false; if (!Arrays.equals(follow, that.follow)) return false; if (!Arrays.equals(track, that.track)) return false; if (!Arrays.equals(language, that.language)) return false; return true; } @Override public int hashCode() { int result = count; result = 31 * result + (follow != null ? Arrays.hashCode(follow) : 0); result = 31 * result + (track != null ? Arrays.hashCode(track) : 0); result = 31 * result + (language != null ? Arrays.hashCode(language) : 0); return result; } @Override public String toString() { return "FilterQuery{" + "count=" + count + ", follow=" + Arrays.toString(follow) + ", track=" + (track == null ? null : Arrays.asList(track)) + ", locations=" + (locations == null ? null : Arrays.asList(locations)) + ", language=" + (language == null ? null : Arrays.asList(language)) + '}'; } }