| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.cql3.statements; |
| |
| import java.util.*; |
| import java.util.regex.Pattern; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.cassandra.exceptions.SyntaxException; |
| |
| public class PropertyDefinitions |
| { |
| private static final Pattern PATTERN_POSITIVE = Pattern.compile("(1|true|yes)"); |
| |
| protected static final Logger logger = LoggerFactory.getLogger(PropertyDefinitions.class); |
| |
| protected final Map<String, Object> properties = new HashMap<String, Object>(); |
| |
| public void addProperty(String name, String value) throws SyntaxException |
| { |
| if (properties.put(name, value) != null) |
| throw new SyntaxException(String.format("Multiple definition for property '%s'", name)); |
| } |
| |
| public void addProperty(String name, Map<String, String> value) throws SyntaxException |
| { |
| if (properties.put(name, value) != null) |
| throw new SyntaxException(String.format("Multiple definition for property '%s'", name)); |
| } |
| |
| public void validate(Set<String> keywords, Set<String> obsolete) throws SyntaxException |
| { |
| for (String name : properties.keySet()) |
| { |
| if (keywords.contains(name)) |
| continue; |
| |
| if (obsolete.contains(name)) |
| logger.warn("Ignoring obsolete property {}", name); |
| else |
| throw new SyntaxException(String.format("Unknown property '%s'", name)); |
| } |
| } |
| |
| protected String getSimple(String name) throws SyntaxException |
| { |
| Object val = properties.get(name); |
| if (val == null) |
| return null; |
| if (!(val instanceof String)) |
| throw new SyntaxException(String.format("Invalid value for property '%s'. It should be a string", name)); |
| return (String)val; |
| } |
| |
| protected Map<String, String> getMap(String name) throws SyntaxException |
| { |
| Object val = properties.get(name); |
| if (val == null) |
| return null; |
| if (!(val instanceof Map)) |
| throw new SyntaxException(String.format("Invalid value for property '%s'. It should be a map.", name)); |
| return (Map<String, String>)val; |
| } |
| |
| public Boolean hasProperty(String name) |
| { |
| return properties.containsKey(name); |
| } |
| |
| public String getString(String key, String defaultValue) throws SyntaxException |
| { |
| String value = getSimple(key); |
| return value != null ? value : defaultValue; |
| } |
| |
| // Return a property value, typed as a Boolean |
| public Boolean getBoolean(String key, Boolean defaultValue) throws SyntaxException |
| { |
| String value = getSimple(key); |
| return (value == null) ? defaultValue : PATTERN_POSITIVE.matcher(value.toLowerCase()).matches(); |
| } |
| |
| // Return a property value, typed as a double |
| public double getDouble(String key, double defaultValue) throws SyntaxException |
| { |
| String value = getSimple(key); |
| if (value == null) |
| { |
| return defaultValue; |
| } |
| else |
| { |
| try |
| { |
| return Double.parseDouble(value); |
| } |
| catch (NumberFormatException e) |
| { |
| throw new SyntaxException(String.format("Invalid double value %s for '%s'", value, key)); |
| } |
| } |
| } |
| |
| // Return a property value, typed as an Integer |
| public Integer getInt(String key, Integer defaultValue) throws SyntaxException |
| { |
| String value = getSimple(key); |
| return toInt(key, value, defaultValue); |
| } |
| |
| public static Integer toInt(String key, String value, Integer defaultValue) throws SyntaxException |
| { |
| if (value == null) |
| { |
| return defaultValue; |
| } |
| else |
| { |
| try |
| { |
| return Integer.valueOf(value); |
| } |
| catch (NumberFormatException e) |
| { |
| throw new SyntaxException(String.format("Invalid integer value %s for '%s'", value, key)); |
| } |
| } |
| } |
| } |