/**
 * END USER LICENSE AGREEMENT (“EULA”)
 *
 * READ THIS AGREEMENT CAREFULLY (date: 9/13/2011):
 * http://www.akiban.com/licensing/20110913
 *
 * BY INSTALLING OR USING ALL OR ANY PORTION OF THE SOFTWARE, YOU ARE ACCEPTING
 * ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. YOU AGREE THAT THIS
 * AGREEMENT IS ENFORCEABLE LIKE ANY WRITTEN AGREEMENT SIGNED BY YOU.
 *
 * IF YOU HAVE PAID A LICENSE FEE FOR USE OF THE SOFTWARE AND DO NOT AGREE TO
 * THESE TERMS, YOU MAY RETURN THE SOFTWARE FOR A FULL REFUND PROVIDED YOU (A) DO
 * NOT USE THE SOFTWARE AND (B) RETURN THE SOFTWARE WITHIN THIRTY (30) DAYS OF
 * YOUR INITIAL PURCHASE.
 *
 * IF YOU WISH TO USE THE SOFTWARE AS AN EMPLOYEE, CONTRACTOR, OR AGENT OF A
 * CORPORATION, PARTNERSHIP OR SIMILAR ENTITY, THEN YOU MUST BE AUTHORIZED TO SIGN
 * FOR AND BIND THE ENTITY IN ORDER TO ACCEPT THE TERMS OF THIS AGREEMENT. THE
 * LICENSES GRANTED UNDER THIS AGREEMENT ARE EXPRESSLY CONDITIONED UPON ACCEPTANCE
 * BY SUCH AUTHORIZED PERSONNEL.
 *
 * IF YOU HAVE ENTERED INTO A SEPARATE WRITTEN LICENSE AGREEMENT WITH AKIBAN FOR
 * USE OF THE SOFTWARE, THE TERMS AND CONDITIONS OF SUCH OTHER AGREEMENT SHALL
 * PREVAIL OVER ANY CONFLICTING TERMS OR CONDITIONS IN THIS AGREEMENT.
 */

package com.akiban.server.types3.mcompat.mfuncs;

import com.akiban.server.types3.LazyList;
import com.akiban.server.types3.TExecutionContext;
import com.akiban.server.types3.TOverloadResult;
import com.akiban.server.types3.mcompat.mtypes.MDatetimes;
import com.akiban.server.types3.mcompat.mtypes.MNumeric;
import com.akiban.server.types3.pvalue.PValueSource;
import com.akiban.server.types3.pvalue.PValueTarget;
import com.akiban.server.types3.texpressions.TInputSetBuilder;
import com.akiban.server.types3.texpressions.TOverloadBase;

public class MFromDays extends TOverloadBase
{
    private static final long BEGINNING = MDatetimes.getTimestamp(new long[]{0, 1, 1, 0, 0, 0},
                                                                  "UTC");
    private  static final long FACTOR = 3600L * 1000 * 24;

    @Override
    protected void buildInputSets(TInputSetBuilder builder)
    {
        builder.covers(MNumeric.BIGINT, 0);
    }

    @Override
    protected void doEvaluate(TExecutionContext context, LazyList<? extends PValueSource> inputs, PValueTarget output)
    {
        long val = inputs.get(0).getInt64();
        output.putInt32( val < 366
                ? 0
                : MDatetimes.encodeDate(val * FACTOR + BEGINNING, context.getCurrentTimezone()));
    }

    @Override
    public String displayName()
    {
        return "FROM_DAYS";
    }
    @Override
    public TOverloadResult resultType()
    {
        return TOverloadResult.fixed(MDatetimes.DATE.instance());
    }
}

@@ -1370,16 +1370,59 @@
 ontext;%0A
+import com.akiban.server.types3.TOverload;%0A
 import c
@@ -1855,16 +1855,111 @@
 dBase%0A%7B%0A
+    public static final TOverload INSTANCE = new MFromDays();%0A    %0A    private MFromDays()%7B%7D;%0A%0A
     priv
@@ -2741,16 +2741,17 @@
 ;%0A    %7D%0A
+%0A
     @Ove

define an instance of MFromDays