/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.sql.embedded;
import com.foundationdb.sql.embedded.JDBCParameterMetaData.ParameterType;
import com.foundationdb.ais.model.Parameter;
import com.foundationdb.ais.model.TableName;
import com.foundationdb.server.error.UnsupportedSQLException;
import com.foundationdb.server.types.TInstance;
import com.foundationdb.sql.parser.CallStatementNode;
import com.foundationdb.sql.parser.ParameterNode;
import com.foundationdb.sql.parser.StaticMethodCallNode;
import com.foundationdb.sql.server.ServerCallInvocation;
import com.foundationdb.sql.types.DataTypeDescriptor;
import java.util.Arrays;
import java.util.List;
abstract class ExecutableCallStatement extends ExecutableStatement
{
protected ServerCallInvocation invocation;
protected JDBCParameterMetaData parameterMetaData;
protected ExecutableCallStatement(ServerCallInvocation invocation,
JDBCParameterMetaData parameterMetaData) {
this.invocation = invocation;
this.parameterMetaData = parameterMetaData;
}
public static ExecutableStatement executableStatement(CallStatementNode call,
List<ParameterNode> sqlParams,
EmbeddedQueryContext context) {
StaticMethodCallNode methodCall = (StaticMethodCallNode)call.methodCall().getJavaValueNode();
ServerCallInvocation invocation =
ServerCallInvocation.of(context.getServer(), methodCall);
return executableStatement(invocation, call, sqlParams, context);
}
public static ExecutableStatement executableStatement(TableName routineName,
EmbeddedQueryContext context) {
ServerCallInvocation invocation =
ServerCallInvocation.of(context.getServer(), routineName);
return executableStatement(invocation, null, null, context);
}
protected static ExecutableStatement executableStatement(ServerCallInvocation invocation,
CallStatementNode call,
List<ParameterNode> sqlParams,
EmbeddedQueryContext context) {
int nparams = (sqlParams == null) ? invocation.size() : sqlParams.size();
JDBCParameterMetaData parameterMetaData = parameterMetaData(invocation, nparams, context);
switch (invocation.getCallingConvention()) {
case LOADABLE_PLAN:
return ExecutableLoadableOperator.executableStatement(invocation, parameterMetaData, call, context);
case JAVA:
return ExecutableJavaMethod.executableStatement(invocation, parameterMetaData, context);
case SCRIPT_FUNCTION_JAVA:
case SCRIPT_FUNCTION_JSON:
return ExecutableScriptFunctionJavaRoutine.executableStatement(invocation, parameterMetaData, context);
case SCRIPT_BINDINGS:
case SCRIPT_BINDINGS_JSON:
return ExecutableScriptBindingsRoutine.executableStatement(invocation, parameterMetaData, context);
default:
throw new UnsupportedSQLException("Unknown routine", call);
}
}
protected static JDBCParameterMetaData parameterMetaData(ServerCallInvocation invocation,
int nparams,
EmbeddedQueryContext context) {
ParameterType[] ptypes = new ParameterType[nparams];
for (int i = 0; i < nparams; i++) {
int usage = invocation.parameterUsage(i);
if (usage < 0) continue;
Parameter parameter = invocation.getRoutineParameter(usage);
TInstance type = parameter.getType();
int jdbcType = type.typeClass().jdbcType();
DataTypeDescriptor sqlType = type.dataTypeDescriptor();
ptypes[i] = new ParameterType(parameter, sqlType, jdbcType, type);
}
return new JDBCParameterMetaData(context.getTypesTranslator(), Arrays.asList(ptypes));
}
public ServerCallInvocation getInvocation() {
return invocation;
}
@Override
public JDBCParameterMetaData getParameterMetaData() {
return parameterMetaData;
}
}