| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.sysds.parser; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.sysds.common.Types.FunctionBlock; |
| import org.apache.sysds.runtime.DMLRuntimeException; |
| |
| /** |
| * Dictionary of all functions of a namespace, represented as a simple |
| * key-value map of function names and function statement blocks. |
| */ |
| public class FunctionDictionary<T extends FunctionBlock> { |
| /** optimized functions **/ |
| private Map<String, T> _funs; |
| |
| /** optional unoptimized functions (no sizes/literals propagated), e.g., for eval **/ |
| private Map<String, T> _funsOrig; |
| |
| public FunctionDictionary() { |
| _funs = new HashMap<>(); |
| } |
| |
| public void addFunction(String fname, T fsb) { |
| if( _funs.containsKey(fname) ) |
| throw new DMLRuntimeException("Function '"+fname+"' already existing in namespace."); |
| //add function to existing maps |
| _funs.put(fname, fsb); |
| if( _funsOrig != null ) |
| _funsOrig.put(fname, fsb); |
| } |
| |
| public void addFunction(String fname, T fsb, boolean opt) { |
| if( !opt && _funsOrig == null ) |
| _funsOrig = new HashMap<>(); |
| Map<String,T> map = opt ? _funs : _funsOrig; |
| if( map.containsKey(fname) ) |
| throw new DMLRuntimeException("Function '"+fname+"' ("+opt+") already existing in namespace."); |
| map.put(fname, fsb); |
| } |
| |
| public void removeFunction(String fname) { |
| _funs.remove(fname); |
| if( _funsOrig != null ) |
| _funsOrig.remove(fname); |
| } |
| |
| public T getFunction(String fname) { |
| return getFunction(fname, true); |
| } |
| |
| public T getFunction(String fname, boolean opt) { |
| //check for existing unoptimized functions if necessary |
| if( !opt && _funsOrig == null ) |
| throw new DMLRuntimeException("Requested unoptimized function " |
| + "'"+fname+"' but original function copies have not been created."); |
| |
| //obtain optimized or unoptimized function (null if not available) |
| return opt ? _funs.get(fname) : |
| (_funsOrig != null) ? _funsOrig.get(fname) : null; |
| } |
| |
| public boolean containsFunction(String fname) { |
| return containsFunction(fname, true); |
| } |
| |
| public boolean containsFunction(String fname, boolean opt) { |
| return opt ? _funs.containsKey(fname) : |
| (_funsOrig != null && _funsOrig.containsKey(fname)); |
| } |
| |
| public Map<String, T> getFunctions() { |
| return getFunctions(true); |
| } |
| |
| public Map<String, T> getFunctions(boolean opt) { |
| return opt ? _funs : _funsOrig; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public void copyOriginalFunctions() { |
| _funsOrig = new HashMap<>(); |
| for( Entry<String,T> fe : _funs.entrySet() ) |
| _funsOrig.put(fe.getKey(), (T)fe.getValue().cloneFunctionBlock()); |
| } |
| } |