Files
IM-server-new/tools_scripts/hawtdb_raw_access.groovy
T

46 lines
1.2 KiB
Groovy

@Grab(group='org.fusesource.hawtdb', module='hawtdb', version='1.6')
import org.fusesource.hawtbuf.codec.StringCodec
import org.fusesource.hawtdb.api.BTreeIndexFactory
import org.fusesource.hawtdb.api.PageFile
import org.fusesource.hawtdb.api.PageFileFactory
import org.fusesource.hawtdb.api.SortedIndex
import org.fusesource.hawtbuf.Buffer
File tmpFile = new File(System.getProperty("user.home") + File.separator + "test_hawtdb.dat")
//tmpFile.createNewFile()
def writeSomeData(tmpFile) {
def factory = new PageFileFactory()
factory.file = tmpFile
factory.open()
def pageFile = factory.getPageFile()
int pageIdx = pageFile.alloc()
pageFile.write(pageIdx, new Buffer("Test".getBytes()))
println "writed at page index ${pageIdx}"
pageFile.flush()
pageFile.close()
}
def readTest(tmpFile) {
def factory = new PageFileFactory()
factory.file = tmpFile
factory.open()
def pageFile = factory.getPageFile()
println "page size is: " + pageFile.pageSize
Buffer b = new Buffer(512)
pageFile.read(0, b)
println "content try read " + b
pageFile.close()
}
writeSomeData(tmpFile)
readTest(tmpFile)