Examples with IonList com.amazon.ion.IonList used on opensource projects

Example 1 with IonList

use of com.amazon.ion.IonList in project amazon-qldb-dmv-sample-java by aws-samples.

the class JournalS3ExportReader method getDataFileKeysFromManifest.

/**
 * Given the S3Object to the completed manifest file, return the keys
 * which are part of this export request.
 *
 * @param s3Object
 *              A {@link S3Object}.
 * @return a list of data file keys containing the chunk of {@link JournalBlock}.
 */
private static List<String> getDataFileKeysFromManifest(final S3Object s3Object) {
    IonReader ionReader = IonReaderBuilder.standard().build(s3Object.getObjectContent());
    // Read the data
    ionReader.next();
    List<String> keys = new ArrayList<>();
    IonStruct ionStruct = (IonStruct) SYSTEM.newValue(ionReader);
    IonList ionKeysList = (IonList) ionStruct.get("keys");
    ionKeysList.forEach(key -> keys.add(((IonString) key).stringValue()));
    return keys;
}

Example 2 with IonList

use of com.amazon.ion.IonList in project ion-java by amzn.

the class SymbolTableTest method testSymtabImageMaintenance.

@Test
public void testSymtabImageMaintenance() {
    IonSystem system = system();
    SymbolTable st = ((_Private_ValueFactory) system).getLstFactory().newLocalSymtab(system.getSystemSymbolTable());
    st.intern("foo");
    IonStruct image = symtabTree(st, system);
    st.intern("bar");
    image = symtabTree(st, system);
    IonList symbols = (IonList) image.get(SYMBOLS);
    assertEquals("[\"foo\",\"bar\"]", symbols.toString());
}

Example 3 with IonList

use of com.amazon.ion.IonList in project ion-java by amzn.

the class Symtabs method sharedSymtabStruct.

/**
 * Constructs the DOM for a shared symtab.
 *
 * @param syms If null, so symbols list will be added.
 */
public static IonStruct sharedSymtabStruct(ValueFactory factory, String name, int version, String... syms) {
    IonStruct s = factory.newEmptyStruct();
    s.setTypeAnnotations(SystemSymbols.ION_SHARED_SYMBOL_TABLE);
    s.add(SystemSymbols.NAME).newString(name);
    s.add(SystemSymbols.VERSION).newInt(version);
    if (syms != null) {
        IonList l = s.add(SystemSymbols.SYMBOLS).newEmptyList();
        for (String sym : syms) {
            l.add().newString(sym);
        }
    }
    return s;
}

Example 4 with IonList

use of com.amazon.ion.IonList in project ion-java by amzn.

the class TreeReaderTest method testInitialStateForList.

@Test
public void testInitialStateForList() {
    IonList list = system().newEmptyList();
    in = system().newReader(list);
    check().next().type(IonType.LIST);
    assertEquals(0, in.getDepth());
    in.stepIn();
    {
        assertEquals(1, in.getDepth());
        expectEof();
    }
    in.stepOut();
    expectTopEof();
}

Example 5 with IonList

use of com.amazon.ion.IonList in project ion-java by amzn.

the class ValueWriterTest method testWriteValuesWithSymtabIntoContainer.

// TODO more thorough testing that you can't output from DOM w/ bad text
@Test
public void testWriteValuesWithSymtabIntoContainer() throws Exception {
    myOutputInList = true;
    SymbolTable fredSymtab = Symtabs.register(Symtabs.FRED_NAME, 1, catalog());
    SymbolTable gingerSymtab = Symtabs.register(Symtabs.GINGER_NAME, 1, catalog());
    String gingerSym = gingerSymtab.findKnownSymbol(1);
    // First setup some data to be copied.
    IonDatagram dg = system().newDatagram(gingerSymtab);
    dg.add().newSymbol(gingerSym);
    IonReader r = system().newReader(dg.getBytes());
    // Now copy that data into a non-top-level context
    iw = makeWriter(fredSymtab);
    iw.writeValues(r);
    IonDatagram result = reload();
    IonList l = (IonList) result.get(0);
    assertEquals(1, l.size());
    IonSymbol s = (IonSymbol) l.get(0);
    // Should've assigned a new SID
    checkSymbol(gingerSym, systemMaxId() + Symtabs.FRED_MAX_IDS[1] + 1, s);
}