com.thelastcheck.io.x9.X9InputStreamCheckDetailReader Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2009-2015 The Last Check, LLC, All Rights Reserved
*
* Licensed 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 com.thelastcheck.io.x9;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import com.google.common.collect.Lists;
import com.thelastcheck.io.base.Record;
import com.thelastcheck.io.base.exception.RecordReaderException;
import com.thelastcheck.io.x9.parser.X937CheckDetailGraph;
import com.thelastcheck.io.x9.parser.X937ImageViewRecords;
import com.thelastcheck.io.x9.parser.X937RecordGraphRecordFilter;
import com.thelastcheck.io.x937.records.X937BundleControlRecord;
import com.thelastcheck.io.x937.records.X937BundleHeaderRecord;
import com.thelastcheck.io.x937.records.X937CashLetterControlRecord;
import com.thelastcheck.io.x937.records.X937CashLetterHeaderRecord;
import com.thelastcheck.io.x937.records.X937CheckDetailAddendumARecord;
import com.thelastcheck.io.x937.records.X937CheckDetailAddendumBRecord;
import com.thelastcheck.io.x937.records.X937CheckDetailAddendumCRecord;
import com.thelastcheck.io.x937.records.X937CheckDetailRecord;
import com.thelastcheck.io.x937.records.X937FileControlRecord;
import com.thelastcheck.io.x937.records.X937FileHeaderRecord;
public class X9InputStreamCheckDetailReader implements Iterable, Closeable {
private X9InputStreamRecordReader reader;
private X937RecordGraphRecordFilter graphFilter;
private Record previousRecord;
private X937CheckDetailGraph cachedRecord;
public X9InputStreamCheckDetailReader(InputStream inputStream) {
this(inputStream, false);
}
public X9InputStreamCheckDetailReader(X9InputStreamRecordReader reader) {
this.reader = reader;
this.graphFilter = new X937RecordGraphRecordFilter();
}
public X9InputStreamCheckDetailReader(InputStream inputStream, boolean skipInvalidRecords) {
this.reader = createInputStreamReader(inputStream, skipInvalidRecords);
this.graphFilter = new X937RecordGraphRecordFilter();
}
public X937CheckDetailGraph readNextCheckDetail() throws IOException {
if (cachedRecord != null) {
X937CheckDetailGraph record = cachedRecord;
cachedRecord = null;
return record;
}
if (previousRecord != null) {
graphFilter.filter(previousRecord);
}
boolean checkGraphReady = false;
previousRecord = null;
do {
Record record = reader.nextRecord();
if (record == null) {
reader.close();
return null;
}
X9Record x9Record = (X9Record) record;
switch (x9Record.recordType()) {
case X9Record.TYPE_CHECK_DETAIL:
checkGraphReady = checkGraphReady();
break;
case X9Record.TYPE_BUNDLE_CONTROL:
checkGraphReady = checkGraphReady();
break;
}
if (checkGraphReady) {
previousRecord = record;
} else {
graphFilter.filter(x9Record);
}
} while (!checkGraphReady);
return makeGraphCopy(graphFilter.checkDetailGraph());
}
private X937CheckDetailGraph makeGraphCopy(X937CheckDetailGraph x937CheckDetailGraph) {
final X937FileHeaderRecord fileHeaderRecord =
(X937FileHeaderRecord) x937CheckDetailGraph.fileHeaderRecord().duplicate();
final X937FileControlRecord fileControlRecord = x937CheckDetailGraph.fileControlRecord() == null ? null
: (X937FileControlRecord) x937CheckDetailGraph.fileControlRecord().duplicate();
final X937CashLetterHeaderRecord cashLetterHeaderRecord = x937CheckDetailGraph.cashLetterHeaderRecord() == null ? null
: (X937CashLetterHeaderRecord) x937CheckDetailGraph.cashLetterHeaderRecord().duplicate();
final X937CashLetterControlRecord cashLetterControlRecord = x937CheckDetailGraph.cashLetterControlRecord() == null ? null
: (X937CashLetterControlRecord) x937CheckDetailGraph.cashLetterControlRecord().duplicate();
final X937BundleHeaderRecord bundleHeaderRecord = x937CheckDetailGraph.bundleHeaderRecord() == null ? null
: (X937BundleHeaderRecord) x937CheckDetailGraph.bundleHeaderRecord().duplicate();
final X937BundleControlRecord bundleControlRecord = x937CheckDetailGraph.bundleControlRecord() == null ? null
: (X937BundleControlRecord) x937CheckDetailGraph.bundleControlRecord().duplicate();
final X937CheckDetailRecord checkDetailRecord = x937CheckDetailGraph.checkDetailRecord();
final X937CheckDetailAddendumBRecord x937CheckDetailAddendumBRecord = x937CheckDetailGraph.checkDetailAddendumBRecord();
final List checkDetailAddendumARecords = Lists.newArrayList(x937CheckDetailGraph.checkDetailAddendumARecords());
final List checkDetailAddendumCRecords = Lists.newArrayList(x937CheckDetailGraph.checkDetailAddendumCRecords());
final List imageViewRecords = Lists.newArrayList(x937CheckDetailGraph.imageViewRecords());
return new X937CheckDetailGraph() {
@Override
public X937CheckDetailRecord checkDetailRecord() {
return checkDetailRecord;
}
@Override
public List checkDetailAddendumARecords() {
return checkDetailAddendumARecords;
}
@Override
public X937CheckDetailAddendumBRecord checkDetailAddendumBRecord() {
return x937CheckDetailAddendumBRecord;
}
@Override
public List checkDetailAddendumCRecords() {
return checkDetailAddendumCRecords;
}
@Override
public List imageViewRecords() {
return imageViewRecords;
}
@Override
public X937BundleHeaderRecord bundleHeaderRecord() {
return bundleHeaderRecord;
}
@Override
public X937BundleControlRecord bundleControlRecord() {
return bundleControlRecord;
}
@Override
public X937CashLetterHeaderRecord cashLetterHeaderRecord() {
return cashLetterHeaderRecord;
}
@Override
public X937CashLetterControlRecord cashLetterControlRecord() {
return cashLetterControlRecord;
}
@Override
public X937FileHeaderRecord fileHeaderRecord() {
return fileHeaderRecord;
}
@Override
public X937FileControlRecord fileControlRecord() {
return fileControlRecord;
}
};
}
private boolean checkGraphReady() {
X937CheckDetailGraph detailGraph = graphFilter.checkDetailGraph();
X937CheckDetailRecord cdr = detailGraph.checkDetailRecord();
return cdr != null;
}
private X9InputStreamRecordReader createInputStreamReader(InputStream inputStream, boolean skipInvalidRecords) {
X9InputStreamRecordReader reader = new X9InputStreamRecordReader(inputStream, skipInvalidRecords);
return reader;
}
@Override
public void close() throws IOException {
reader.close();
}
@Override
public Iterator iterator() {
return new Iterator() {
public boolean hasNext() {
/*
* If we already have a record waiting to be retrieved, then
* return true;
*/
if (cachedRecord != null) {
return true;
}
/*
* Go see if we have a next record. If not, return false. If
* true, store it for use in the next pickup.
*/
try {
cachedRecord = readNextCheckDetail();
if (cachedRecord == null) {
return false;
}
} catch (Exception e) {
throw new RecordReaderException(e);
}
return true;
}
public X937CheckDetailGraph next() {
X937CheckDetailGraph record = null;
try {
record = readNextCheckDetail();
} catch (Exception e) {
throw new RecordReaderException(e);
}
if (record == null) {
throw new NoSuchElementException();
}
return record;
}
public void remove() {
throw new UnsupportedOperationException();
}
};
}
}