Java tutorial
/** * Copyright (C) 2010-2016 Structr GmbH * * This file is part of Structr <http://structr.org>. * * Structr is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * Structr is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Structr. If not, see <http://www.gnu.org/licenses/>. */ package org.structr.core.property; import java.util.logging.Logger; import org.apache.chemistry.opencmis.commons.enums.PropertyType; import org.apache.commons.lang3.StringUtils; import org.apache.lucene.search.BooleanClause; import org.apache.lucene.search.SortField; import org.apache.lucene.util.NumericUtils; import org.neo4j.index.lucene.ValueContext; import org.structr.common.SecurityContext; import org.structr.common.error.FrameworkException; import org.structr.common.error.NumberToken; import org.structr.core.GraphObject; import org.structr.core.app.Query; import org.structr.core.converter.PropertyConverter; import org.structr.core.graph.search.IntegerSearchAttribute; import org.structr.core.graph.search.SearchAttribute; /** * A property that stores and retrieves a simple Integer value. * * */ public class IntProperty extends AbstractPrimitiveProperty<Integer> implements NumericalPropertyKey<Integer> { private static final Logger logger = Logger.getLogger(IntProperty.class.getName()); public static final String INT_EMPTY_FIELD_VALUE = NumericUtils.intToPrefixCoded(Integer.MIN_VALUE); public IntProperty(final String name) { super(name); } @Override public String typeName() { return "Integer"; } @Override public Class valueType() { return Integer.class; } @Override public Integer getSortType() { return SortField.INT; } @Override public PropertyConverter<Integer, Integer> databaseConverter(SecurityContext securityContext) { return null; } @Override public PropertyConverter<Integer, Integer> databaseConverter(SecurityContext securityContext, GraphObject entity) { return null; } @Override public PropertyConverter<?, Integer> inputConverter(SecurityContext securityContext) { return new InputConverter(securityContext); } @Override public Integer convertToNumber(Double source) { if (source != null) { return source.intValue(); } return null; } protected class InputConverter extends PropertyConverter<Object, Integer> { public InputConverter(SecurityContext securityContext) { super(securityContext, null); } @Override public Object revert(Integer source) throws FrameworkException { return source; } @Override public Integer convert(Object source) throws FrameworkException { if (source == null) return null; if (source instanceof Number) { return ((Number) source).intValue(); } if (source instanceof String && StringUtils.isNotBlank((String) source)) { try { return Double.valueOf(source.toString()).intValue(); } catch (Throwable t) { throw new FrameworkException(422, new NumberToken(declaringClass.getSimpleName(), IntProperty.this)); } } return null; } } @Override public Object fixDatabaseProperty(Object value) { if (value != null) { if (value instanceof Integer) { return value; } if (value instanceof Number) { return ((Number) value).intValue(); } try { return Double.valueOf(value.toString()).intValue(); } catch (Throwable t) { // no chance, give up.. } } return null; } @Override public SearchAttribute getSearchAttribute(SecurityContext securityContext, BooleanClause.Occur occur, Integer searchValue, boolean exactMatch, final Query query) { return new IntegerSearchAttribute(this, searchValue, occur, exactMatch); } @Override public void index(GraphObject entity, Object value) { super.index(entity, value != null ? ValueContext.numeric((Number) fixDatabaseProperty(value)) : value); } @Override public String getValueForEmptyFields() { return INT_EMPTY_FIELD_VALUE; } // ----- CMIS support ----- @Override public PropertyType getDataType() { return PropertyType.INTEGER; } }