com.webcohesion.ofx4j.client.impl.LocalResourceFIDataStore.java Source code

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Here is the source code for com.webcohesion.ofx4j.client.impl.LocalResourceFIDataStore.java

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/*
 * Copyright 2008 Web Cohesion
 *
 * 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 com.webcohesion.ofx4j.client.impl;

import com.webcohesion.ofx4j.client.FinancialInstitutionData;
import com.webcohesion.ofx4j.client.FinancialInstitutionDataStore;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Implementation of a FI data store that loads its FI data from a local resource.
 *
 * @author Ryan Heaton
 */
public class LocalResourceFIDataStore implements FinancialInstitutionDataStore {

    private static final Log LOG = LogFactory.getLog(LocalResourceFIDataStore.class);
    private final Map<String, FinancialInstitutionData> fiData;

    /**
     * Load the default set of institution data (found at classpath:/institutions.xml).
     *
     * @throws IOException If the resource is unreadable or malformed.
     */
    public LocalResourceFIDataStore() throws IOException {
        this(LocalResourceFIDataStore.class.getResourceAsStream("/META-INF/ofx4j/institutions.xml"));
    }

    /**
     * Load the institution data from a file.
     *
     * @param in The file to read.
     * @throws IOException If the resource is unreadable or malformed.
     */
    public LocalResourceFIDataStore(File in) throws IOException {
        this(new FileInputStream(in));
    }

    /**
     * Load the institution data from a specific stream.
     *
     * @param in The stream.
     * @throws IOException If the resource is unreadable or malformed.
     */
    public LocalResourceFIDataStore(InputStream in) throws IOException {
        Map<String, FinancialInstitutionData> fiData = new HashMap<String, FinancialInstitutionData>();
        if (in != null) {
            try {
                FIDataList list = (FIDataList) JAXBContext.newInstance(FIDataList.class).createUnmarshaller()
                        .unmarshal(in);
                if (list != null && list.getData() != null) {
                    for (BaseFinancialInstitutionData fi : list.getData()) {
                        fiData.put(fi.getId(), fi);
                    }
                }
            } catch (JAXBException e) {
                throw new IOException(e.getMessage());
            }

            if (LOG.isInfoEnabled()) {
                LOG.info(fiData.size() + " institutions loaded.");
            }
        }

        this.fiData = fiData;
    }

    // Inherited.
    public FinancialInstitutionData getInstitutionData(String fid) {
        return fiData.get(fid);
    }

    // Inherited.
    public List<FinancialInstitutionData> getInstitutionDataList() {
        return new ArrayList<FinancialInstitutionData>(fiData.values());
    }

    /**
     * Add a financial institution.
     *
     * @param data The data to add.
     */
    public void add(BaseFinancialInstitutionData data) {
        this.fiData.put(data.getId(), data);
    }

    /**
     * Store the data somewhere.
     *
     * @param out The output stream.
     * @throws IOException If an error occurs.
     */
    public void storeData(OutputStream out) throws IOException {
        try {
            FIDataList dataList = new FIDataList();
            ArrayList<BaseFinancialInstitutionData> data = new ArrayList<BaseFinancialInstitutionData>();
            for (FinancialInstitutionData datum : fiData.values()) {
                if (datum instanceof BaseFinancialInstitutionData) {
                    data.add((BaseFinancialInstitutionData) datum);
                }
            }
            dataList.setData(data);
            JAXBContext.newInstance(FIDataList.class).createMarshaller().marshal(dataList, out);
        } catch (JAXBException e) {
            throw new IOException(e.getMessage());
        }
    }

}