uk.co.q3c.v7.base.useropt.DefaultUserOption.java Source code

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Here is the source code for uk.co.q3c.v7.base.useropt.DefaultUserOption.java

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/*
 * Copyright (C) 2013 David Sowerby
 * 
 * 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 uk.co.q3c.v7.base.useropt;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.base.Splitter;
import com.google.common.collect.Lists;

/**
 * A set of user options. Although not mandatory, typically the option group and option are the simple class name and
 * field of the object (respectively) requiring the option value. <br>
 * <br>
 * The {@link UserOptionStore} is injected to enable use of different storage methods.
 * 
 * @author David Sowerby 15 Jul 2013
 * 
 */
@Singleton
public class DefaultUserOption implements UserOption {

    private static Logger log = LoggerFactory.getLogger(DefaultUserOption.class);
    private final UserOptionStore userOptionStore;

    @Inject
    protected DefaultUserOption(UserOptionStore userOptionStore) {
        super();
        this.userOptionStore = userOptionStore;
    }

    @Override
    public void setOption(String optionGroup, String option, int value) {
        userOptionStore.optionMap(optionGroup, option).put(option, Integer.toString(value));
    }

    @Override
    public void setOption(String optionGroup, String option, String value) {
        userOptionStore.optionMap(optionGroup, option).put(option, value);
    }

    @Override
    public void setOption(String optionGroup, String option, DateTime value) {
        userOptionStore.optionMap(optionGroup, option).put(option, value.toString());
    }

    @Override
    public void setOption(String optionGroup, String option, double value) {
        userOptionStore.optionMap(optionGroup, option).put(option, Double.toString(value));
    }

    @Override
    public void setOption(String optionGroup, String option, boolean value) {
        userOptionStore.optionMap(optionGroup, option).put(option, Boolean.toString(value));
    }

    public void setOption(String optionGroup, String option, List<String> list) {
        StringBuilder buf = new StringBuilder();
        boolean first = true;
        for (String s : list) {
            if (!first) {
                buf.append("|");
            } else {
                first = false;
            }
            buf.append(s);
        }

        userOptionStore.optionMap(optionGroup, option).put(option, buf.toString());
    }

    public void setOption(String optionGroup, String option, Map<String, String> map) {
        StringBuilder buf = new StringBuilder();
        boolean first = true;
        for (Map.Entry<String, String> entry : map.entrySet()) {
            if (!first) {
                buf.append("|");
            } else {
                first = false;
            }
            buf.append(entry.getKey());
            buf.append("=");
            buf.append(entry.getValue());
        }
        userOptionStore.optionMap(optionGroup, option).put(option, buf.toString());
    }

    @Override
    public int getOptionAsInt(String optionGroup, String option, int defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            try {
                return Integer.parseInt(optionValue);
            } catch (Exception e) {
                log.warn("Invalid option value {} for " + optionGroup + "." + option, optionValue);
                return defaultValue;
            }
        }
    }

    @Override
    public String getOptionAsString(String optionGroup, String option, String defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        }
        return optionValue;
    }

    @Override
    public DateTime getOptionAsDateTime(String optionGroup, String option, DateTime defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            try {
                return DateTime.parse(optionValue);
            } catch (Exception e) {
                log.warn("Invalid option value {} for " + optionGroup + "." + option, optionValue);
                return defaultValue;
            }
        }
    }

    @Override
    public double getOptionAsDouble(String optionGroup, String option, double defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            try {
                return Double.parseDouble(optionValue);
            } catch (Exception e) {
                log.warn("Invalid option value {} for " + optionGroup + "." + option, optionValue);
                return defaultValue;
            }
        }
    }

    @Override
    public boolean getOptionAsBoolean(String optionGroup, String option, boolean defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            try {
                return Boolean.parseBoolean(optionValue);
            } catch (Exception e) {
                log.warn("Invalid option value {} for " + optionGroup + "." + option, optionValue);
                return defaultValue;
            }
        }
    }

    public Map<String, String> getOptionAsMap(String optionGroup, String option, Map<String, String> defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            Map<String, String> map = new TreeMap<>();
            Iterable<String> entries = Splitter.on("|").split(optionValue);
            for (String entry : entries) {
                String[] kv = entry.split("=");
                map.put(kv[0], kv[1]);
            }
            return map;
        }
    }

    public List<String> getOptionAsList(String optionGroup, String option, List<String> defaultValue) {
        String optionValue = userOptionStore.getOptionValue(optionGroup, option);
        if (optionValue == null) {
            return defaultValue;
        } else {
            Iterable<String> entries = Splitter.on("|").split(optionValue);
            ArrayList<String> list = Lists.newArrayList(entries);
            return list;
        }
    }

}