001/*
002 * (C) Copyright 2006-2019 Nuxeo (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Florent Guillaume
018 */
019package org.nuxeo.ecm.core.blob;
020
021import static org.apache.commons.lang3.StringUtils.isBlank;
022import static org.apache.commons.lang3.StringUtils.isNotBlank;
023
024import java.util.Map;
025
026import org.apache.logging.log4j.LogManager;
027import org.apache.logging.log4j.Logger;
028import org.nuxeo.runtime.api.Framework;
029
030/**
031 * Basic configuration based on properties.
032 *
033 * @since 11.1
034 */
035public class PropertyBasedConfiguration {
036
037    private static final Logger log = LogManager.getLogger(PropertyBasedConfiguration.class);
038
039    public final String systemPropertyPrefix;
040
041    public final Map<String, String> properties;
042
043    public PropertyBasedConfiguration(String systemPropertyPrefix, Map<String, String> properties) {
044        this.systemPropertyPrefix = systemPropertyPrefix;
045        this.properties = properties;
046    }
047
048    /** Gets a string property. */
049    public String getProperty(String propertyName) {
050        return getProperty(propertyName, null);
051    }
052
053    /** Gets a string property, or the given default if undefined or blank. */
054    public String getProperty(String propertyName, String defaultValue) {
055        String propValue = properties.get(propertyName);
056        if (isNotBlank(propValue)) {
057            return propValue;
058        }
059        if (systemPropertyPrefix != null) {
060            propValue = Framework.getProperty(systemPropertyPrefix + "." + propertyName);
061            if (isNotBlank(propValue)) {
062                return propValue;
063            }
064        }
065        return defaultValue;
066    }
067
068    /** Gets a long property, or -1 if undefined or blank. */
069    public long getLongProperty(String key) {
070        String s = getProperty(key);
071        long value = -1;
072        if (!isBlank(s)) {
073            try {
074                value = Long.parseLong(s.trim());
075            } catch (NumberFormatException e) {
076                log.error("Cannot parse long " + key + ": " + s);
077            }
078        }
079        return value;
080    }
081
082    /** Gets an integer property, or -1 if undefined or blank. */
083    public int getIntProperty(String key) {
084        String s = getProperty(key);
085        int value = -1;
086        if (!isBlank(s)) {
087            try {
088                value = Integer.parseInt(s.trim());
089            } catch (NumberFormatException e) {
090                log.error("Cannot parse integer " + key + ": " + s);
091            }
092        }
093        return value;
094    }
095
096    /** Gets a boolean property. */
097    public boolean getBooleanProperty(String key) {
098        return Boolean.parseBoolean(getProperty(key));
099    }
100
101}