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Merge pull request #8 from scijava/add-table-io-service
Add TableIOService and test
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‎pom.xml

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@@ -5,7 +5,7 @@
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<parent>
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<groupId>org.scijava</groupId>
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<artifactId>pom-scijava</artifactId>
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<version>26.0.0</version>
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<version>27.0.1</version>
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<relativePath />
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</parent>
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<license.copyrightOwners>Board of Regents of the University of
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Wisconsin-Madison, and Friedrich Miescher Institute for Biomedical Research.</license.copyrightOwners>
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<scijava-common.version>2.81.0</scijava-common.version>
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<!-- NB: Deploy releases to the SciJava Maven repository. -->
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<releaseProfiles>deploy-to-scijava</releaseProfiles>
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</properties>

‎src/main/java/org/scijava/table/io/DefaultTableIOService.java

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/*-
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* #%L
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* Table structures for SciJava.
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* %%
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* Copyright (C) 2012 - 2019 Board of Regents of the University of
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* Wisconsin-Madison, and Friedrich Miescher Institute for Biomedical Research.
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* %%
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* #L%
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*/
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package org.scijava.table.io;
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import java.io.IOException;
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import org.scijava.io.IOPlugin;
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import org.scijava.io.IOService;
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import org.scijava.plugin.Parameter;
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import org.scijava.plugin.Plugin;
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import org.scijava.service.AbstractService;
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import org.scijava.service.Service;
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import org.scijava.table.Table;
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@Plugin(type = Service.class)
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public class DefaultTableIOService extends AbstractService implements
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TableIOService
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{
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@Parameter
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private IOService ioService;
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@Override
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public boolean canOpen(String source) {
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IOPlugin<?> opener = ioService.getOpener(source);
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if (opener == null) return false;
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return Table.class.isAssignableFrom(opener.getDataType());
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}
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@Override
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public boolean canSave(Table<?, ?> table, String destination) {
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IOPlugin<Table<?, ?>> saver = ioService.getSaver(table, destination);
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if (saver == null) return false;
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return saver.supportsSave(destination);
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}
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@Override
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public Table<?, ?> open(String source) throws IOException {
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IOPlugin<?> opener = ioService.getOpener(source);
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if (opener != null && Table.class.isAssignableFrom(opener.getDataType())) {
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return (Table<?, ?>) opener.open(source);
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}
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throw new UnsupportedOperationException("No compatible opener found.");
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}
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@Override
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public void save(Table<?, ?> table, String destination) throws IOException {
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IOPlugin<Table<?, ?>> saver = ioService.getSaver(table, destination);
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if (saver != null) {
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saver.save(table, destination);
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}
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else {
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throw new UnsupportedOperationException("No compatible saver found.");
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}
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}
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}

‎src/main/java/org/scijava/table/io/TableIOService.java

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/*-
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* #%L
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* Table structures for SciJava.
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* %%
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* Copyright (C) 2012 - 2019 Board of Regents of the University of
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* Wisconsin-Madison, and Friedrich Miescher Institute for Biomedical Research.
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* %%
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* #L%
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*/
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package org.scijava.table.io;
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import java.io.IOException;
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import org.scijava.service.SciJavaService;
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import org.scijava.table.Table;
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public interface TableIOService extends SciJavaService {
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boolean canOpen(String source);
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boolean canSave(Table<?, ?> table, String destination);
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Table<?, ?> open(String source) throws IOException;
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void save(Table<?, ?> table, String destination) throws IOException;
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}

‎src/test/java/org/scijava/table/FakeTableIOPlugin.java

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/*-
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* #%L
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* Table structures for SciJava.
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* %%
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* Copyright (C) 2012 - 2019 Board of Regents of the University of
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* Wisconsin-Madison, and Friedrich Miescher Institute for Biomedical Research.
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* %%
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* #L%
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*/
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package org.scijava.table;
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import org.scijava.io.AbstractIOPlugin;
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@SuppressWarnings("rawtypes")
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public class FakeTableIOPlugin extends AbstractIOPlugin<Table> {
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@Override
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public Class<Table> getDataType() {
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return Table.class;
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}
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@Override
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public boolean supportsOpen(String loc) {
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return loc.endsWith("csv");
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}
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@Override
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public boolean supportsSave(String loc) {
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return loc.endsWith("csv");
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}
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@Override
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public Table open(String loc) {
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return new DefaultGenericTable();
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}
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}

‎src/test/java/org/scijava/table/TableIOServiceTest.java

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/*-
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* #%L
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* Table structures for SciJava.
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* %%
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* Copyright (C) 2012 - 2019 Board of Regents of the University of
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* Wisconsin-Madison, and Friedrich Miescher Institute for Biomedical Research.
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* %%
8+
* Redistribution and use in source and binary forms, with or without
9+
* modification, are permitted provided that the following conditions are met:
10+
*
11+
* 1. Redistributions of source code must retain the above copyright notice,
12+
* this list of conditions and the following disclaimer.
13+
* 2. Redistributions in binary form must reproduce the above copyright notice,
14+
* this list of conditions and the following disclaimer in the documentation
15+
* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18+
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20+
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22+
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23+
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24+
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* #L%
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*/
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package org.scijava.table;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.io.IOException;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.scijava.Context;
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import org.scijava.io.IOPlugin;
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import org.scijava.plugin.PluginInfo;
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import org.scijava.plugin.PluginService;
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import org.scijava.table.io.DefaultTableIOService;
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import org.scijava.table.io.TableIOService;
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public class TableIOServiceTest {
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private Context context;
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@SuppressWarnings("rawtypes")
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@Before
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public void setUp() {
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context = new Context();
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PluginInfo<IOPlugin> info = PluginInfo.create(FakeTableIOPlugin.class,
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IOPlugin.class);
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context.service(PluginService.class).addPlugin(info);
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}
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@After
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public void tearDown() {
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context.dispose();
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context = null;
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}
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@Test
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public void testTableIOService() {
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String tableFile = "fakeTableFile.csv";
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GenericTable table = new DefaultGenericTable();
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TableIOService tableIOService = context.getService(TableIOService.class);
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assertTrue(tableIOService.getClass().equals(DefaultTableIOService.class));
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assertTrue(tableIOService.canOpen(tableFile));
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assertTrue(tableIOService.canSave(table, tableFile));
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try {
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Table<?, ?> data = tableIOService.open(tableFile);
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assertTrue(Table.class.isAssignableFrom(data.getClass()));
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}
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catch (IOException exc) {
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fail(exc.toString());
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}
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}
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}

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