com.opengamma.web.holiday.WebHolidayVersionResource.java Source code

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Here is the source code for com.opengamma.web.holiday.WebHolidayVersionResource.java

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/**
 * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.web.holiday;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;

import org.apache.commons.lang.StringUtils;
import org.joda.beans.impl.flexi.FlexiBean;
import org.threeten.bp.LocalDate;
import org.threeten.bp.Year;

import com.opengamma.id.UniqueId;
import com.opengamma.master.holiday.HolidayDocument;
import com.opengamma.util.tuple.Pair;

/**
 * RESTful resource for a version of a holiday.
 */
@Path("/holidays/{holidayId}/versions/{versionId}")
@Produces(MediaType.TEXT_HTML)
public class WebHolidayVersionResource extends AbstractWebHolidayResource {

    /**
     * Creates the resource.
     * @param parent  the parent resource, not null
     */
    public WebHolidayVersionResource(final AbstractWebHolidayResource parent) {
        super(parent);
    }

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getJSON(@Context Request request) {
        EntityTag etag = new EntityTag(data().getVersioned().getUniqueId().toString());
        ResponseBuilder builder = request.evaluatePreconditions(etag);
        if (builder != null) {
            return builder.build();
        }
        FlexiBean out = createRootData();
        String json = getFreemarker().build(JSON_DIR + "holiday.ftl", out);
        return Response.ok(json).tag(etag).build();
    }

    //-------------------------------------------------------------------------
    /**
     * Creates the output root data.
     * @return the output root data, not null
     */
    protected FlexiBean createRootData() {
        FlexiBean out = super.createRootData();
        HolidayDocument latestDoc = data().getHoliday();
        HolidayDocument versionedHoliday = data().getVersioned();
        out.put("latestHolidayDoc", latestDoc);
        out.put("latestHoliday", latestDoc.getHoliday());
        out.put("holidayDoc", versionedHoliday);
        out.put("holiday", versionedHoliday.getHoliday());
        out.put("deleted", !latestDoc.isLatest());
        List<Pair<Year, List<LocalDate>>> map = new ArrayList<Pair<Year, List<LocalDate>>>();
        List<LocalDate> dates = versionedHoliday.getHoliday().getHolidayDates();
        if (dates.size() > 0) {
            int year = dates.get(0).getYear();
            int start = 0;
            int pos = 0;
            for (; pos < dates.size(); pos++) {
                if (dates.get(pos).getYear() == year) {
                    continue;
                }
                map.add(Pair.of(Year.of(year), dates.subList(start, pos)));
                year = dates.get(pos).getYear();
                start = pos;
            }
            map.add(Pair.of(Year.of(year), dates.subList(start, pos)));
        }
        out.put("holidayDatesByYear", map);
        return out;
    }

    //-------------------------------------------------------------------------
    /**
     * Builds a URI for this resource.
     * @param data  the data, not null
     * @return the URI, not null
     */
    public static URI uri(final WebHolidayData data) {
        return uri(data, null);
    }

    /**
     * Builds a URI for this resource.
     * @param data  the data, not null
     * @param overrideVersionId  the override version id, null uses information from data
     * @return the URI, not null
     */
    public static URI uri(final WebHolidayData data, final UniqueId overrideVersionId) {
        String holidayId = data.getBestHolidayUriId(null);
        String versionId = StringUtils
                .defaultString(overrideVersionId != null ? overrideVersionId.getVersion() : data.getUriVersionId());
        return data.getUriInfo().getBaseUriBuilder().path(WebHolidayVersionResource.class).build(holidayId,
                versionId);
    }

}