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Object Modeling System (OMS) is a pure Java object-oriented framework. OMS v3.+ is a highly interoperable and lightweight modeling framework for component-based model and simulation development on multiple platforms.
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/*
 * $Id: JNAComponentTask.java efd1c3f7fd91 2018-12-10 [email protected] $
 * 
 * This file is part of the Object Modeling System (OMS),
 * 2007-2012, Olaf David and others, Colorado State University.
 *
 * OMS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 2.1.
 *
 * OMS 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with OMS.  If not, see .
 */
package oms3.nap;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.FileSet;

/**
 * NAP task.
 *
 * @author od
 */
public class JNAComponentTask extends Task {

    List filesets = new ArrayList();
    File destdir;
    String dllName;
    boolean genlogging;
    boolean gensingleton;

    public void addFileset(FileSet fileset) {
        filesets.add(fileset);
    }

    public void setDestdir(File destdir) {
        this.destdir = destdir;
    }

    public void setDllName(String dllName) {
        this.dllName = dllName;
    }

    public void setGenlogging(boolean genlogging) {
        this.genlogging = genlogging;
    }

    public void setGensingleton(boolean gensingleton) {
        this.gensingleton = gensingleton;
    }

    public void setGenprotected(boolean genprotected) {
        //TODO ignore for now, remove later.
    }

    @Override
    public void execute() throws BuildException {
        if (filesets.size() < 1) {
            throw new BuildException("No 'fileset'(s).");
        }
        if (destdir == null) {
            throw new BuildException("No 'destdir'");
        }

        List jna_FTN = new ArrayList();
        boolean anyFortranRebuild = false;

        try {
            for (FileSet fs : filesets) {
                DirectoryScanner ds = fs.getDirectoryScanner(getProject());
                File baseDir = ds.getBasedir();
                for (String incFile : ds.getIncludedFiles()) {
                    boolean rebuild = needsRebuild(baseDir, destdir, incFile);

                    File genFile = new File(destdir, incFile.substring(0, incFile.lastIndexOf('.')) + ".java");
                    File srcFile = new File(baseDir, incFile);

                    if (incFile.endsWith("nlogo")) {
                        if(!rebuild) {
                            continue;
                        }
                        // netlogo
                        NetLogo nl = new NetLogo() {
                            @Override
                            public void log(String msg) {
                                JNAComponentTask.this.log(msg, Project.MSG_VERBOSE);
                            }
                        };
                        nl.setGenFile(genFile);
                        nl.setSrcFile(srcFile);
                        nl.setRelativeFile(incFile);
                        AnnotationParser.handle(srcFile, nl);
                    } else {
                        // fortran
                        JNAFortran ah = new JNAFortran(this, rebuild) {
                            @Override
                            public void log(String msg) {
                                JNAComponentTask.this.log(msg, Project.MSG_VERBOSE);
                            }
                        };
                        ah.setLibname(dllName);
                        ah.setGenFile(genFile);
                        ah.setSrcFile(srcFile);
                        ah.setRelativeFile(incFile);
                        AnnotationParser.handle(srcFile, ah);

                        if (ah.valid) {
                            jna_FTN.add(ah);
                            anyFortranRebuild = anyFortranRebuild || rebuild;
                        }
                    }

                    if (rebuild && genFile.exists()) {
                        log("Generating source: " + genFile, Project.MSG_INFO);
                    }
                }
            }
            if (anyFortranRebuild && jna_FTN.size() > 0) {
                File f = JNAFortran.generateLib(this, destdir, jna_FTN);
                log("Generating JNA source: " + f, Project.MSG_INFO);
            }

        } catch (Exception ex) {
            throw new BuildException(ex);
        }
    }

    private boolean needsRebuild(File srcDir, File genSrcDir, String src) {
        File genFile = new File(genSrcDir, src.substring(0, src.lastIndexOf('.')) + ".java");
        if (!genFile.exists()) {
            return true;
        }
        File srcFile = new File(srcDir, src);
        if (srcFile.lastModified() > genFile.lastModified()) {
            return true;
        }
        return false;
    }
}