org.apache.james.container.spring.mailbox.MaxQuotaConfigurationReader.java Source code

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Here is the source code for org.apache.james.container.spring.mailbox.MaxQuotaConfigurationReader.java

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package org.apache.james.container.spring.mailbox;

import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.james.lifecycle.api.Configurable;
import org.apache.james.mailbox.exception.MailboxException;
import org.apache.james.mailbox.quota.MaxQuotaManager;
import org.apache.james.mailbox.quota.QuotaRootResolver;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MaxQuotaConfigurationReader implements Configurable {

    private final MaxQuotaManager maxQuotaManager;
    private final QuotaRootResolver quotaRootResolver;

    public MaxQuotaConfigurationReader(MaxQuotaManager maxQuotaManager, QuotaRootResolver quotaRootResolver) {
        this.maxQuotaManager = maxQuotaManager;
        this.quotaRootResolver = quotaRootResolver;
    }

    @Override
    public void configure(HierarchicalConfiguration config) throws ConfigurationException {
        Long defaultMaxMessage = config.configurationAt("maxQuotaManager").getLong("defaultMaxMessage", null);
        Long defaultMaxStorage = config.configurationAt("maxQuotaManager").getLong("defaultMaxStorage", null);
        Map<String, Long> maxMessage = parseMaxMessageConfiguration(config, "maxMessage");
        Map<String, Long> maxStorage = parseMaxMessageConfiguration(config, "maxStorage");
        try {
            configureDefaultValues(defaultMaxMessage, defaultMaxStorage);
            configureQuotaRootSpecificValues(maxMessage, maxStorage);
        } catch (MailboxException e) {
            throw new ConfigurationException("Exception caught while configuring max quota manager", e);
        }
    }

    private Map<String, Long> parseMaxMessageConfiguration(HierarchicalConfiguration config, String entry) {
        List<HierarchicalConfiguration> maxMessageConfiguration = config.configurationAt("maxQuotaManager")
                .configurationsAt(entry);
        Map<String, Long> result = new HashMap<String, Long>();
        for (HierarchicalConfiguration conf : maxMessageConfiguration) {
            result.put(conf.getString("quotaRoot"), conf.getLong("value"));
        }
        return result;
    }

    private void configureDefaultValues(Long defaultMaxMessage, Long defaultMaxStorage) throws MailboxException {
        if (defaultMaxMessage != null) {
            maxQuotaManager.setDefaultMaxMessage(defaultMaxMessage);
        }
        if (defaultMaxStorage != null) {
            maxQuotaManager.setDefaultMaxStorage(defaultMaxStorage);
        }
    }

    private void configureQuotaRootSpecificValues(Map<String, Long> maxMessage, Map<String, Long> maxStorage)
            throws MailboxException {
        for (Map.Entry<String, Long> entry : maxMessage.entrySet()) {
            maxQuotaManager.setMaxMessage(quotaRootResolver.createQuotaRoot(entry.getKey()), entry.getValue());
        }
        for (Map.Entry<String, Long> entry : maxStorage.entrySet()) {
            maxQuotaManager.setMaxStorage(quotaRootResolver.createQuotaRoot(entry.getKey()), entry.getValue());
        }
    }
}