Java tutorial
/******************************************************************************* * Copyright 2013-2016 alladin-IT GmbH * * 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 at.alladin.rmbt.statisticServer; import java.io.Serializable; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.TimeZone; import org.json.JSONException; import org.json.JSONObject; import com.google.common.base.Strings; import com.google.common.hash.Funnel; import com.google.common.hash.PrimitiveSink; public class StatisticParameters implements Serializable, Funnel<StatisticParameters> { private static final long serialVersionUID = 1L; private final String lang; private final float quantile; private final int duration; //duration in days private final int maxDevices; private final String type; private final String networkTypeGroup; private final double accuracy; private final String country; private final boolean userServerSelection; private final java.sql.Timestamp endDate; private final int province; public StatisticParameters(String defaultLang, String params) { String _lang = defaultLang; float _quantile = 0.5f; // median is default quantile int _duration = 90; int _maxDevices = 100; String _type = "mobile"; String _networkTypeGroup = null; double _accuracy = -1; String _country = null; boolean _userServerSelection = false; java.sql.Timestamp _endDate = null; int _province = -1; if (params != null && !params.isEmpty()) // try parse the string to a JSON object try { final JSONObject request = new JSONObject(params); _lang = request.optString("language", _lang); final double __quantile = request.optDouble("quantile", Double.NaN); if (__quantile >= 0 && __quantile <= 1) _quantile = (float) __quantile; final int __months = request.optInt("months", 0); // obsolete, old format (now in days) if (__months > 0) _duration = __months * 30; final int __duration = request.optInt("duration", 0); if (__duration > 0) _duration = __duration; final int __maxDevices = request.optInt("max_devices", 0); if (__maxDevices > 0) _maxDevices = __maxDevices; final String __type = request.optString("type", null); if (__type != null) _type = __type; final String __networkTypeGroup = request.optString("network_type_group", null); if (__networkTypeGroup != null && !__networkTypeGroup.equalsIgnoreCase("all")) _networkTypeGroup = __networkTypeGroup; final double __accuracy = request.optDouble("location_accuracy", -1); if (__accuracy != -1) _accuracy = __accuracy; final String __country = request.optString("country", null); if (__country != null && __country.length() == 2) _country = __country; _userServerSelection = request.optBoolean("user_server_selection"); // It returns false if there is no such key, or if the value is not Boolean.TRUE or the String "true". final String __endDateString = request.optString("end_date", null); if (__endDateString != null) { final java.sql.Timestamp __endDate = parseSqlTimestamp(__endDateString); _endDate = __endDate; } final int __province = request.optInt("province", 0); if (__province > 0) _province = __province; } catch (final JSONException e) { } lang = _lang; quantile = _quantile; duration = _duration; maxDevices = _maxDevices; type = _type; networkTypeGroup = _networkTypeGroup; accuracy = _accuracy; country = _country; userServerSelection = _userServerSelection; endDate = _endDate; province = _province; } public static long getSerialversionuid() { return serialVersionUID; } public String getLang() { return lang; } public float getQuantile() { return quantile; } public int getDuration() //dz obsoletes getMonths { return duration; } public int getMaxDevices() { return maxDevices; } public String getType() { return type; } public String getNetworkTypeGroup() { return networkTypeGroup; } public double getAccuracy() { return accuracy; } public String getCountry() { return country; } public boolean getUserServerSelection() { return userServerSelection; } public java.sql.Timestamp getEndDate() { return endDate; } public int getProvince() { return province; } @Override public void funnel(StatisticParameters o, PrimitiveSink into) { into.putUnencodedChars(o.getClass().getCanonicalName()).putChar(':') .putUnencodedChars(Strings.nullToEmpty(o.lang)).putFloat(o.quantile).putInt(o.duration) .putUnencodedChars(Strings.nullToEmpty(o.type)).putInt(o.maxDevices) .putUnencodedChars(Strings.nullToEmpty(o.networkTypeGroup)).putDouble(o.accuracy) .putUnencodedChars(Strings.nullToEmpty(o.country)).putBoolean(o.userServerSelection) .putInt((endDate == null) ? 0 : (int) endDate.getTime()).putInt(o.province); } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((lang == null) ? 0 : lang.hashCode()); result = prime * result + maxDevices; result = prime * result + duration; result = prime * result + ((networkTypeGroup == null) ? 0 : networkTypeGroup.hashCode()); result = prime * result + Float.floatToIntBits(quantile); result = prime * result + ((type == null) ? 0 : type.hashCode()); result = prime * result + ((accuracy == -1) ? 0 : (int) accuracy); result = prime * result + ((country == null) ? 0 : country.hashCode()); result = prime * result + ((userServerSelection) ? 0 : 1); result = prime * result + ((endDate == null) ? 0 : endDate.hashCode()); result = prime * result + ((province == -1) ? 0 : (int) province); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; StatisticParameters other = (StatisticParameters) obj; if (lang == null) { if (other.lang != null) return false; } else if (!lang.equals(other.lang)) return false; if (maxDevices != other.maxDevices) return false; if (duration != other.duration) return false; if (networkTypeGroup == null) { if (other.networkTypeGroup != null) return false; } else if (!networkTypeGroup.equals(other.networkTypeGroup)) return false; if (Float.floatToIntBits(quantile) != Float.floatToIntBits(other.quantile)) return false; if (accuracy != other.accuracy) { return false; } if (country != null && other.country != null && !country.equals(other.country)) { return false; } if (userServerSelection != other.userServerSelection) { return false; } if (type == null) { if (other.type != null) return false; } else if (!type.equals(other.type)) return false; return true; } private static java.sql.Timestamp parseSqlTimestamp(final String textual_date) { if (textual_date == null) return null; final SimpleDateFormat date_formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // interpret at UTC time date_formatter.setTimeZone(TimeZone.getTimeZone("GMT")); try { java.util.Date parsed = date_formatter.parse(textual_date); java.sql.Timestamp sql = new java.sql.Timestamp(parsed.getTime()); return sql; } catch (ParseException ex) { return null; } } }