iTextSharp.text.io.GroupedRandomAccessSource.Get C# (CSharp) Method

        public virtual int Get(long position) {
            SourceEntry entry = GetSourceEntryForOffset(position);
            
            if (entry == null) // we have run out of data to read from
                return -1;
            
            return entry.source.Get(entry.OffsetN(position));

        }
        

        virtual public void TestGetArray()
        {
            ArrayRandomAccessSource source1 = new ArrayRandomAccessSource(data); // 0 - 99
            ArrayRandomAccessSource source2 = new ArrayRandomAccessSource(data); // 100 - 199
            ArrayRandomAccessSource source3 = new ArrayRandomAccessSource(data); // 200 - 299

            IRandomAccessSource[] inputs = new IRandomAccessSource[] { source1, source2, source3 };

            GroupedRandomAccessSource grouped = new GroupedRandomAccessSource(inputs);

            byte[] output = new byte[500];

            Assert.AreEqual(300, grouped.Get(0, output, 0, 300));
            AssertArrayEqual(RangeArray(0, 100), 0, output, 0, 100);
            AssertArrayEqual(RangeArray(0, 100), 0, output, 100, 100);
            AssertArrayEqual(RangeArray(0, 100), 0, output, 200, 100);

            Assert.AreEqual(300, grouped.Get(0, output, 0, 301));
            AssertArrayEqual(RangeArray(0, 100), 0, output, 0, 100);
            AssertArrayEqual(RangeArray(0, 100), 0, output, 100, 100);
            AssertArrayEqual(RangeArray(0, 100), 0, output, 200, 100);

            Assert.AreEqual(100, grouped.Get(150, output, 0, 100));
            AssertArrayEqual(RangeArray(50, 50), 0, output, 0, 50);
            AssertArrayEqual(RangeArray(0, 50), 0, output, 50, 50);
        }