com.opengamma.financial.convention.DefaultConventionSource.java Source code

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Here is the source code for com.opengamma.financial.convention.DefaultConventionSource.java

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/**
 * Copyright (C) 2013 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.financial.convention;

import com.google.common.collect.Iterables;
import com.opengamma.OpenGammaRuntimeException;
import com.opengamma.id.ExternalId;
import com.opengamma.id.ExternalIdBundle;
import com.opengamma.id.UniqueId;
import com.opengamma.util.ArgumentChecker;

/**
 * Default implementation of {@link ConventionSource} that uses an underlying {@link ConventionMaster}
 * as a data source.
 */
public class DefaultConventionSource implements ConventionSource {
    /** The convention master */
    private final ConventionMaster _conventionMaster;

    /**
     * @param conventionMaster The convention master, not null
     */
    public DefaultConventionSource(final ConventionMaster conventionMaster) {
        ArgumentChecker.notNull(conventionMaster, "convention master");
        _conventionMaster = conventionMaster;
    }

    @Override
    public Convention getConvention(final ExternalId identifier) {
        final ConventionSearchResult result = _conventionMaster
                .searchConvention(new ConventionSearchRequest(identifier));
        final int size = result.getResults().size();
        switch (size) {
        case 0:
            return null;
        case 1:
            return Iterables.getOnlyElement(result.getResults()).getConvention();
        default:
            throw new OpenGammaRuntimeException(
                    "Multiple matches (" + size + ") to " + identifier + "; expecting one");
        }
    }

    @Override
    public Convention getConvention(final ExternalIdBundle identifiers) {
        final ConventionSearchResult result = _conventionMaster
                .searchConvention(new ConventionSearchRequest(identifiers));
        final int size = result.getResults().size();
        switch (size) {
        case 0:
            return null;
        case 1:
            return Iterables.getOnlyElement(result.getResults()).getConvention();
        default:
            throw new OpenGammaRuntimeException(
                    "Multiple matches (" + size + ") to " + identifiers + "; expecting one");
        }
    }

    @Override
    public Convention getConvention(final UniqueId identifier) {
        final ConventionDocument doc = _conventionMaster.getConvention(identifier);
        if (doc != null) {
            return doc.getConvention();
        }
        return null;
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends Convention> T getConvention(final Class<T> clazz, final ExternalId identifier) {
        final Convention convention = getConvention(identifier);
        if (convention == null) {
            return null;
        }
        if (clazz.isAssignableFrom(convention.getClass())) {
            return (T) convention;
        }
        throw new OpenGammaRuntimeException("Convention for " + identifier + " was not of expected type " + clazz);
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends Convention> T getConvention(final Class<T> clazz, final ExternalIdBundle identifiers) {
        final Convention convention = getConvention(identifiers);
        if (convention == null) {
            return null;
        }
        if (clazz.isAssignableFrom(convention.getClass())) {
            return (T) convention;
        }
        throw new OpenGammaRuntimeException("Convention for " + identifiers + " was not of expected type " + clazz);
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends Convention> T getConvention(final Class<T> clazz, final UniqueId identifier) {
        final Convention convention = getConvention(identifier);
        if (convention == null) {
            return null;
        }
        if (clazz.isAssignableFrom(convention.getClass())) {
            return (T) convention;
        }
        throw new OpenGammaRuntimeException("Convention for " + identifier + " was not of expected type " + clazz);
    }
}