| /* |
| * 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.runtime.io; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.sysds.common.Types.FileFormat; |
| import org.apache.sysds.conf.CompilerConfig.ConfigType; |
| import org.apache.sysds.conf.ConfigurationManager; |
| import org.apache.sysds.runtime.DMLRuntimeException; |
| import org.apache.sysds.runtime.data.SparseBlock; |
| import org.apache.sysds.runtime.matrix.data.MatrixBlock; |
| |
| public class MatrixReaderFactory { |
| private static final Log LOG = LogFactory.getLog(MatrixReaderFactory.class.getName()); |
| public static MatrixReader createMatrixReader(FileFormat fmt) { |
| MatrixReader reader = null; |
| boolean par = ConfigurationManager.getCompilerConfigFlag(ConfigType.PARALLEL_CP_READ_TEXTFORMATS); |
| boolean mcsr = MatrixBlock.DEFAULT_SPARSEBLOCK == SparseBlock.Type.MCSR; |
| |
| if (LOG.isDebugEnabled()){ |
| LOG.debug("reading parallel: " + par + " mcsr: " + mcsr); |
| } |
| |
| switch(fmt) { |
| case TEXT: |
| case MM: |
| reader = (par & mcsr) ? |
| new ReaderTextCellParallel(fmt) : new ReaderTextCell(fmt); |
| break; |
| |
| case CSV: |
| reader = (par & mcsr) ? |
| new ReaderTextCSVParallel(new FileFormatPropertiesCSV()) : |
| new ReaderTextCSV(new FileFormatPropertiesCSV()); |
| break; |
| |
| case LIBSVM: |
| reader = (par & mcsr) ? |
| new ReaderTextLIBSVMParallel() : new ReaderTextLIBSVM(); |
| break; |
| |
| case BINARY: |
| reader = (par & mcsr) ? |
| new ReaderBinaryBlockParallel(false) : new ReaderBinaryBlock(false); |
| break; |
| |
| default: |
| throw new DMLRuntimeException("Failed to create matrix reader for unknown format: " + fmt.toString()); |
| } |
| return reader; |
| } |
| |
| public static MatrixReader createMatrixReader( ReadProperties props ) { |
| //check valid read properties |
| if( props == null ) |
| throw new DMLRuntimeException("Failed to create matrix reader with empty properties."); |
| |
| MatrixReader reader = null; |
| FileFormat fmt = props.fmt; |
| boolean par = ConfigurationManager.getCompilerConfigFlag(ConfigType.PARALLEL_CP_READ_TEXTFORMATS); |
| boolean mcsr = MatrixBlock.DEFAULT_SPARSEBLOCK == SparseBlock.Type.MCSR; |
| |
| if (LOG.isDebugEnabled()){ |
| LOG.debug("reading parallel: " + par + " mcsr: " + mcsr); |
| } |
| |
| switch(fmt) { |
| case TEXT: |
| case MM: |
| reader = (par & mcsr) ? |
| new ReaderTextCellParallel(fmt) : new ReaderTextCell(fmt); |
| break; |
| |
| case CSV: |
| reader = (par & mcsr) ? |
| new ReaderTextCSVParallel( props.formatProperties!=null ? |
| (FileFormatPropertiesCSV)props.formatProperties : new FileFormatPropertiesCSV()) : |
| new ReaderTextCSV( props.formatProperties!=null ? |
| (FileFormatPropertiesCSV)props.formatProperties : new FileFormatPropertiesCSV()); |
| break; |
| |
| case LIBSVM: |
| reader = (par & mcsr) ? |
| new ReaderTextLIBSVMParallel() : new ReaderTextLIBSVM(); |
| break; |
| |
| case BINARY: |
| reader = (par & mcsr) ? |
| new ReaderBinaryBlockParallel(props.localFS) : new ReaderBinaryBlock(props.localFS); |
| break; |
| |
| default: |
| throw new DMLRuntimeException("Failed to create matrix reader for unknown format: " + fmt.toString()); |
| } |
| return reader; |
| } |
| } |