Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/util/MetaAndTableJRDataSource.java @ 8946:5d5d482da3e9
Implementing SINFO - FlowDepthMinMax calculation
author | gernotbelger |
---|---|
date | Tue, 13 Mar 2018 18:49:33 +0100 |
parents | 7bbfb24e6eec |
children |
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/* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde * Software engineering by * Björnsen Beratende Ingenieure GmbH * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.sinfo.util; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import net.sf.jasperreports.engine.JRDataSource; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRField; /** * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public final class MetaAndTableJRDataSource implements JRDataSource { private final List<String[]> data = new ArrayList<>(); private final Map<String, String> metaData = new HashMap<>(); private int index = -1; public void addData(final String[] row) { this.data.add(row); } public void addMetaData(final String key, final String value) { this.metaData.put(key, value); } @Override public boolean next() throws JRException { this.index++; return this.index < this.data.size(); } @Override public Object getFieldValue(final JRField field) throws JRException { final String fieldName = field.getName(); if (fieldName.startsWith("meta:")) return this.metaData.get(fieldName.substring("meta:".length())); if (fieldName.startsWith("data:")) { final int column = Integer.valueOf(fieldName.substring("data:".length())); return this.data.get(this.index)[column]; } return null; } }