private boolean openSeekable() {
final Info initialInfo = new Info();
final Comment initialComment = new Comment();
this.m_chunkSize = Math.min(8500, (int) length(this.m_vorbisStream));
final Page page = new Page();
final int[] testSerialno = {0};
final int ret = this.fetchHeaders(initialInfo, initialComment, testSerialno, null);
final int serialno = testSerialno[0];
final int dataOffset = (int) this.m_offset;
this.m_oggStreamState.clear();
if (ret < 0) {
return false;
}
seek(this.m_vorbisStream, 0L, 1);
this.m_offset = tell(this.m_vorbisStream);
final long end = this.getPreviousPage(page);
if (page.serialno() != serialno) {
if (this.bisectForwardSerialno(0L, 0L, end + 1L, serialno, 0) < 0) {
return false;
}
} else if (this.bisectForwardSerialno(0L, end, end + 1L, serialno, 0) < 0) {
return false;
}
this.prefetchAllHeaders(initialInfo, initialComment, dataOffset);
this.rawSeek(this.m_dataOffsets[0]);
return true;
}
/**
* Set <code>Page</code> parent. Called from <code>Page</code> when added to <code>Page</code>
* object.
*
* @param page Page
*/
public void setPage(Page page) {
if (this.page != null) removePropertyChangeListener(this.page);
this.page = page;
addPropertyChangeListener(this.page);
page.addComponentListener(this);
page.addPropertyChangeListener(this);
pageSize = page.getSize();
}
private void displayPage() throws IOException {
Page page = newPage();
layoutErrorBlock(page);
ServletUtil.layoutExplanationBlock(page, "Debug Actions");
page.add(makeForm());
page.add("<br>");
endPage(page);
}
protected Page addBarePageHeading(Page page) {
// FIXME: Move the following fragment elsewhere
// It causes the doctype statement to appear in the middle,
// after the <body> tag.
page.add("<!doctype html public \"-//w3c//dtd html 4.0 transitional//en\">");
page.addHeader("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\">");
page.addHeader("<meta http-equiv=\"content-type\" content=\"text/html;charset=ISO-8859-1\">");
page.addHeader("<link rel=\"shortcut icon\" href=\"/favicon.ico\" type=\"image/x-icon\" />");
return page;
}
// Called when a servlet doesn't get the parameters it expects/needs
protected void paramError() throws IOException {
// FIXME: As of 2006-03-15 this method and its only caller checkParam() are not called from
// anywhere
PrintWriter wrtr = resp.getWriter();
Page page = new Page();
// add referer, params, msg to contact lockss unless from old bookmark
// or manually entered url
page.add("Parameter error");
page.write(wrtr);
}
/** Display a message in lieu of the normal page */
protected void displayMsgInLieuOfPage(String msg) throws IOException {
// TODO: Look at HTML
Page page = newPage();
Composite warning = new Composite();
warning.add(msg);
warning.add("<br>");
page.add(warning);
layoutFooter(page);
page.write(resp.getWriter());
}
// see DbFile.java for javadocs
public void writePage(Page page) throws IOException {
// some code goes here
long offset = page.getId().pageNumber() * BufferPool.PAGE_SIZE;
byte[] data = page.getPageData();
try {
raf.seek(offset);
for (int i = 0; i < data.length; i++) {
raf.writeByte(data[i]);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
public int fetchHeaders(final Info info, final Comment comment, final int[] serialno, Page page) {
if (page == null) {
page = new Page();
final int retValue = this.getNextPage(page, this.m_chunkSize);
if (retValue == -128) {
return -128;
}
if (retValue < 0) {
return -130;
}
}
if (serialno != null) {
serialno[0] = page.serialno();
}
this.m_oggStreamState.init(page.serialno());
info.init();
comment.init();
final Packet packet = new Packet();
int i = 0;
while (i < 3) {
this.m_oggStreamState.pagein(page);
while (i < 3) {
final int result = this.m_oggStreamState.packetout(packet);
if (result == 0) {
break;
}
if (result == -1) {
info.clear();
this.m_oggStreamState.clear();
return -1;
}
if (info.synthesis_headerin(comment, packet) != 0) {
info.clear();
this.m_oggStreamState.clear();
return -1;
}
++i;
}
if (i < 3 && this.getNextPage(page, 1L) < 0) {
info.clear();
this.m_oggStreamState.clear();
return -1;
}
}
return 0;
}
private int bisectForwardSerialno(
final long begin, long searched, final long end, final int currentno, final int m) {
long endsearched = end;
long next = end;
final Page page = new Page();
while (searched < endsearched) {
long bisect;
if (endsearched - searched < this.m_chunkSize) {
bisect = searched;
} else {
bisect = (searched + endsearched) / 2L;
}
this.seekHelper(bisect);
final int ret = this.getNextPage(page, -1L);
if (ret == -128) {
return -128;
}
if (ret < 0 || page.serialno() != currentno) {
endsearched = bisect;
if (ret < 0) {
continue;
}
next = ret;
} else {
searched = ret + page.header_len + page.body_len;
}
}
this.seekHelper(next);
int ret = this.getNextPage(page, -1L);
if (ret == -128) {
return -128;
}
if (searched >= end || ret == -1) {
this.m_links = m + 1;
(this.m_offsets = new long[m + 2])[m + 1] = searched;
} else {
ret = this.bisectForwardSerialno(next, this.m_offset, end, page.serialno(), m + 1);
if (ret == -128) {
return -128;
}
}
this.m_offsets[m] = begin;
return 0;
}
/** Common page setup. */
protected Page newPage() {
// Compute heading
String heading = getHeading();
if (heading == null) {
heading = "Box Administration";
}
// Create page and layout header
Page page = ServletUtil.doNewPage(getPageTitle(), isFramed());
Iterator inNavIterator;
if (myServletDescr().hasNoNavTable()) {
inNavIterator = CollectionUtil.EMPTY_ITERATOR;
} else {
inNavIterator =
new FilterIterator(
new ObjectArrayIterator(getServletDescrs()),
new Predicate() {
public boolean evaluate(Object obj) {
return isServletInNav((ServletDescr) obj);
}
});
}
ServletUtil.layoutHeader(
this,
page,
heading,
isLargeLogo(),
getMachineName(),
getLockssApp().getStartDate(),
inNavIterator);
String warnMsg = CurrentConfig.getParam(PARAM_UI_WARNING);
if (warnMsg != null) {
Composite warning = new Composite();
warning.add("<center><font color=red size=+1>");
warning.add(warnMsg);
warning.add("</font></center><br>");
page.add(warning);
}
return page;
}
private void prefetchAllHeaders(
final Info firstInfo, final Comment firstComment, final int dataoffset) {
final Page page = new Page();
this.m_info = new Info[this.m_links];
this.m_comments = new Comment[this.m_links];
this.m_dataOffsets = new long[this.m_links];
this.m_pcmLengths = new long[this.m_links];
this.m_serialnos = new int[this.m_links];
for (int i = 0; i < this.m_links; ++i) {
if (firstInfo != null && firstComment != null && i == 0) {
this.m_info[i] = firstInfo;
this.m_comments[i] = firstComment;
this.m_dataOffsets[i] = dataoffset;
} else {
this.seekHelper(this.m_offsets[i]);
this.m_info[i] = new Info();
this.m_comments[i] = new Comment();
if (this.fetchHeaders(this.m_info[i], this.m_comments[i], null, null) == -1) {
this.m_dataOffsets[i] = -1L;
} else {
this.m_dataOffsets[i] = this.m_offset;
this.m_oggStreamState.clear();
}
}
final long end = this.m_offsets[i + 1];
this.seekHelper(end);
while (true) {
final int ret = this.getPreviousPage(page);
if (ret == -1) {
this.m_info[i].clear();
break;
}
if (page.granulepos() != -1L) {
this.m_serialnos[i] = page.serialno();
this.m_pcmLengths[i] = page.granulepos();
break;
}
}
}
}
public boolean hasNext() throws DbException, TransactionAbortedException, IOException {
// System.out.println("hf has next: " + _currentPageId +_numPages);
if (_tupleIterator == null) return false;
if (_tupleIterator.hasNext()) return true;
// If we have more pages
// System.out.println(_currentPageId+" llllll "+_numPages);
while (_currentPageId < (_numPages)) {
_currentPage = readPage(_currentPageId++);
_tupleIterator = _currentPage.iterator();
if (_tupleIterator.hasNext()) {
_pagesRead++;
return true;
}
}
return false;
}
public Tuple previous() throws DbException, TransactionAbortedException, IOException {
// System.out.println("previous ");
if (_tupleIterator == null) {
throw new NoSuchElementException("Tuple iterator not opened");
}
if (((HeapPageIterator) _tupleIterator).hasPrevious()) {
return ((HeapPageIterator) _tupleIterator).previous();
} else {
if (_currentPageId > 1) {
// System.out.println("CUURENT PAGEID "+_currentPageId);
_currentPageId = _currentPageId - 2;
_currentPage = readPage(_currentPageId++);
// System.out.println("NOW "+_currentPageId);
_pagesRead++;
_tupleIterator = _currentPage.iterator();
((HeapPageIterator) _tupleIterator).setLast();
if (((HeapPageIterator) _tupleIterator).hasPrevious()) {
return ((HeapPageIterator) _tupleIterator).previous();
}
} else return null;
}
return null;
}
/**
* overrides the test1 function in TestDriver. It tests some simple normal buffer manager
* operations.
*
* @return whether test1 has passed
*/
protected boolean test1() {
System.out.print("\n Test 1 does a simple test of normal buffer ");
System.out.print("manager operations:\n");
// We choose this number to ensure that at least one page will have to be
// written during this test.
boolean status = OK;
int numPages = SystemDefs.JavabaseBM.getNumUnpinnedBuffers() + 1;
Page pg = new Page();
PageId pid;
PageId lastPid;
PageId firstPid = new PageId();
System.out.print(" - Allocate a bunch of new pages\n");
try {
firstPid = SystemDefs.JavabaseBM.newPage(pg, numPages);
} catch (Exception e) {
System.err.print("*** Could not allocate " + numPages);
System.err.print(" new pages in the database.\n");
e.printStackTrace();
return false;
}
// Unpin that first page... to simplify our loop.
try {
SystemDefs.JavabaseBM.unpinPage(firstPid, false /*not dirty*/);
} catch (Exception e) {
System.err.print("*** Could not unpin the first new page.\n");
e.printStackTrace();
status = FAIL;
}
System.out.print(" - Write something on each one\n");
pid = new PageId();
lastPid = new PageId();
for (pid.pid = firstPid.pid, lastPid.pid = pid.pid + numPages;
status == OK && pid.pid < lastPid.pid;
pid.pid = pid.pid + 1) {
try {
SystemDefs.JavabaseBM.pinPage(pid, pg, /*emptyPage:*/ true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not pin new page " + pid.pid + "\n");
e.printStackTrace();
}
if (status == OK) {
// Copy the page number + 99999 onto each page. It seems
// unlikely that this bit pattern would show up there by
// coincidence.
int data = pid.pid + 99999;
try {
Convert.setIntValue(data, 0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed\n");
status = FAIL;
}
if (status == OK) {
try {
SystemDefs.JavabaseBM.unpinPage(pid, /*dirty:*/ true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin dirty page " + pid.pid + "\n");
e.printStackTrace();
}
}
}
}
if (status == OK)
System.out.print(
" - Read that something back from each one\n"
+ " (because we're buffering, this is where "
+ "most of the writes happen)\n");
for (pid.pid = firstPid.pid; status == OK && pid.pid < lastPid.pid; pid.pid = pid.pid + 1) {
try {
SystemDefs.JavabaseBM.pinPage(pid, pg, /*emptyPage:*/ false);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not pin page " + pid.pid + "\n");
e.printStackTrace();
}
if (status == OK) {
int data = 0;
try {
data = Convert.getIntValue(0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed \n");
status = FAIL;
}
if (status == OK) {
if (data != (pid.pid) + 99999) {
status = FAIL;
System.err.print("*** Read wrong data back from page " + pid.pid + "\n");
}
}
if (status == OK) {
try {
SystemDefs.JavabaseBM.unpinPage(pid, /*dirty:*/ true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin page " + pid.pid + "\n");
e.printStackTrace();
}
}
}
}
if (status == OK) System.out.print(" - Free the pages again\n");
for (pid.pid = firstPid.pid; pid.pid < lastPid.pid; pid.pid = pid.pid + 1) {
try {
SystemDefs.JavabaseBM.freePage(pid);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Error freeing page " + pid.pid + "\n");
e.printStackTrace();
}
}
if (status == OK) System.out.print(" Test 1 completed successfully.\n");
return status;
}
public void open() throws DbException, TransactionAbortedException, IOException {
_currentPage = readPage(_currentPageId++);
_pagesRead++;
_tupleIterator = _currentPage.iterator();
}
/**
* overrides the test4 function in TestDriver
*
* @return whether test4 has passed
*/
protected boolean test4() {
System.out.print("\n Test 4 exercises some of the internals " + "of the buffer manager\n");
int index;
int numPages = NUMBUF + 10;
Page pg = new Page();
PageId pid = new PageId();
PageId[] pids = new PageId[numPages];
boolean status = OK;
System.out.print(" - Allocate bunch of pages together \n");
for (int i = 0; i < numPages / NUMBUF; i++) {
for (index = i * NUMBUF; status == OK && index < (i + 1) * NUMBUF; ++index) {
pg = new Page();
try {
pid = SystemDefs.JavabaseBM.newPage(pg, 1);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not allocate new page number " + index + 1 + "\n");
e.printStackTrace();
}
if (status == OK) {
pids[index] = pid;
}
if (status == OK) {
// Copy the page number + 99999 onto each page. It seems
// unlikely that this bit pattern would show up there by
// coincidence.
int data = pid.pid + 99999;
try {
Convert.setIntValue(data, 0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed\n");
status = FAIL;
e.printStackTrace();
}
}
}
for (index = i * NUMBUF; status == OK && index < (i + 1) * NUMBUF; ++index) {
try {
SystemDefs.JavabaseBM.unpinPage(pids[index], true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin page " + pids[index].pid + "\n");
e.printStackTrace();
}
}
}
if (status == OK) {
System.out.print(" - Read the pages\n");
for (int i = 0; i < numPages / NUMBUF; i++) {
for (index = i * NUMBUF; status == OK && index < (i + 1) * NUMBUF; ++index) {
pg = new Page();
pid = pids[index];
try {
SystemDefs.JavabaseBM.pinPage(pid, pg, false);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not pin page " + pid.pid + "\n");
e.printStackTrace();
}
if (status == OK) {
int data = 0;
try {
data = Convert.getIntValue(0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed \n");
status = FAIL;
}
if (data != pid.pid + 99999) {
status = FAIL;
System.err.print("*** Read wrong data back from page " + pid.pid + "\n");
}
}
}
for (index = i * NUMBUF; status == OK && index < (i + 1) * NUMBUF; ++index) {
try {
SystemDefs.JavabaseBM.unpinPage(pids[index], true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin page " + pids[index].pid + "\n");
e.printStackTrace();
}
}
}
}
if (status == OK) {
System.out.print(" Test 4 completed successfully.\n");
}
return status;
}
/** @param el */
public BookImage(Books el, String user) {
super();
this.Book = el;
this.setStyleName("cells");
this.setHeight("250px");
this.setWidth("200px");
rating.setAnimated(true);
rating.setCaption(null);
rating.setMaxValue(5);
rating.setStyleName("rating");
rating.setReadOnly(true);
rating_my.setAnimated(true);
rating_my.setCaption(null);
rating_my.setMaxValue(5);
rating_my.setStyleName("rating_my");
IRaitingService iRaitingService = new IRaitingService();
try {
double rate = iRaitingService.getRaiting(el.getId());
rating.setReadOnly(false);
rating.setValue(rate);
rating.setReadOnly(true);
double myrate = iRaitingService.getRaiting(user, el.getId());
rating_my.setValue(myrate);
} catch (SQLException e) {
e.printStackTrace();
}
rating_my.addValueChangeListener(
e -> {
try {
Rating rat =
iRaitingService.getUser(
getUI().getSession().getAttribute("user").toString(), el.getId());
rat.setRaiting(rating_my.getValue());
iRaitingService.update(rat);
double rate = iRaitingService.getRaiting(el.getId());
rating.setReadOnly(false);
rating.setValue(rate);
rating.setReadOnly(true);
new Notification(String.valueOf(rate), Notification.Type.TRAY_NOTIFICATION)
.show(Page.getCurrent());
} catch (SQLException e1) {
e1.printStackTrace();
}
});
rating_layout.addComponent(rating);
rating_layout.addComponent(rating_my);
rating_layout.setComponentAlignment(rating, Alignment.MIDDLE_LEFT);
rating_layout.setComponentAlignment(rating_my, Alignment.MIDDLE_LEFT);
rating_layout.setStyleName("ratinglayout");
imageEmbedded.setSource(new FileResource(new File(Book.getImage())));
title.setValue(Book.getTitle());
author.setValue(Book.getAuthor());
if (Book.getFile().isEmpty()) buttonDownload.setEnabled(false);
buttonDownload.setWidth("80%");
imageEmbedded.setWidth("100%");
imageEmbedded.setHeight("100%");
title.setWidth(null);
author.setWidth(null);
VerticalLayout bodyLayout = new VerticalLayout(title, author, imageEmbedded);
bodyLayout.setExpandRatio(title, 12);
bodyLayout.setExpandRatio(author, 8);
bodyLayout.setExpandRatio(imageEmbedded, 80);
bodyLayout.setSizeFull();
bodyLayout.setComponentAlignment(title, Alignment.MIDDLE_CENTER);
bodyLayout.setComponentAlignment(author, Alignment.MIDDLE_CENTER);
bodyLayout.setComponentAlignment(imageEmbedded, Alignment.MIDDLE_CENTER);
buttonDownload.setStyleName("super-button");
title.setStyleName("name-label");
author.setStyleName("author-label");
this.addComponent(rating_layout);
this.addComponent(bodyLayout);
this.addComponent(buttonDownload);
this.setComponentAlignment(rating_layout, Alignment.TOP_CENTER);
this.setComponentAlignment(bodyLayout, Alignment.TOP_CENTER);
this.setComponentAlignment(buttonDownload, Alignment.BOTTOM_CENTER);
this.setExpandRatio(rating_layout, 5);
this.setExpandRatio(bodyLayout, 85);
this.setExpandRatio(buttonDownload, 10);
StreamResource sr = getStream();
FileDownloader fileDownloader = new FileDownloader(sr);
fileDownloader.extend(buttonDownload);
bodyLayout.addLayoutClickListener(
e -> {
BookWin win = new BookWin(this.Book);
UI.getCurrent().addWindow(win);
});
}
@Override
public int pcmSeek(final long pos) {
if (!this.m_vorbisStream.isSeekable()) {
return -1;
}
long total = this.pcmTotal(-1);
if (pos < 0L || pos > total) {
this.m_pcmOffset = -1L;
this.decodeClear();
return -1;
}
int link;
for (link = this.m_links - 1; link >= 0; --link) {
total -= this.m_pcmLengths[link];
if (pos >= total) {
break;
}
}
final long target = pos - total;
long end = this.m_offsets[link + 1];
long begin = this.m_offsets[link];
int best = (int) begin;
final Page page = new Page();
while (begin < end) {
long bisect;
if (end - begin < this.m_chunkSize) {
bisect = begin;
} else {
bisect = (end + begin) / 2L;
}
this.seekHelper(bisect);
final int ret = this.getNextPage(page, end - bisect);
if (ret == -1) {
end = bisect;
} else {
final long granulepos = page.granulepos();
if (granulepos < target) {
best = ret;
begin = this.m_offset;
} else {
end = bisect;
}
}
}
if (this.rawSeek(best) != 0) {
this.m_pcmOffset = -1L;
this.decodeClear();
return -1;
}
if (this.m_pcmOffset >= pos) {
this.m_pcmOffset = -1L;
this.decodeClear();
return -1;
}
if (pos > this.pcmTotal(-1)) {
this.m_pcmOffset = -1L;
this.decodeClear();
return -1;
}
while (this.m_pcmOffset < pos) {
final int target2 = (int) (pos - this.m_pcmOffset);
final int[] _index = new int[this.m_info[this.m_currentLink].channelsCount];
int samples = this.m_dspState.synthesis_pcmout(this.m_pcmf_buffer, _index);
if (samples > target2) {
samples = target2;
}
this.m_dspState.synthesis_read(samples);
this.m_pcmOffset += samples;
if (samples < target2 && this.processPacket(true) == 0) {
this.m_pcmOffset = this.pcmTotal(-1);
}
}
return 0;
}
@Override
public void execute() {
if (USE_OMETA) {
try {
exportWithOmeta();
} catch (Exception e) {
e.printStackTrace();
}
return;
}
try {
File dir = new File("/Users/josh/projects/Leo/t2");
File html = new File(dir, "foo.html");
File templatedir = new File("resources/");
if (useRandomFile) {
} else {
// get a file to write to
if (document.getExportFile() != null) {
html = document.getExportFile();
dir = html.getParentFile();
} else {
java.awt.FileDialog fd = new java.awt.FileDialog((Frame) null);
fd.setMode(FileDialog.SAVE);
fd.setVisible(true);
if (fd.getFile() == null) {
return;
}
String filename = fd.getFile();
if (!filename.toLowerCase().endsWith(".html")) {
filename += ".html";
}
html = new File(fd.getDirectory(), filename);
dir = html.getParentFile();
}
}
// File file = File.createTempFile("foo",".html");
// file.deleteOnExit();
StringWriter treeContent = new StringWriter();
PrintWriter treeOut = new PrintWriter(treeContent);
PropWriter treeWriter = new PropWriter(treeOut);
StringWriter setupContent = new StringWriter();
for (Layer layer : page.children()) {
treeWriter.p("//layer");
treeWriter.indent();
for (SketchNode node : layer.children()) {
DynamicNode dnode = (DynamicNode) node;
exportNode(treeWriter, dnode, true, dir);
if (node.isVisual() && AminoAdapter.shouldAddToScene(node, document.getBindings())) {
setupContent.append("root.add(" + node.getId() + ");\n");
}
if (AminoAdapter.useSetup(dnode)) {
setupContent.append(node.getId() + ".setup(root);\n");
}
doExtensions(setupContent, dnode);
}
treeWriter.outdent();
}
for (Binding binding : document.getBindings()) {
exportBinding(new PrintWriter(setupContent), binding);
}
treeOut.close();
setupContent.close();
Map<String, String> subs = new HashMap<String, String>();
subs.put("tree", treeContent.toString());
subs.put("setup", setupContent.toString());
if (!html.exists()) {
StringUtils.applyTemplate(new File(templatedir, "index_template.html"), html, subs);
}
File js = new File(dir, "generated.js");
StringUtils.applyTemplate(new File(templatedir, "generated_template.js"), js, subs);
StringUtils.copyFile(new File(templatedir, "amino.js"), new File(dir, "amino.js"));
StringUtils.copyFile(new File(templatedir, "jquery.js"), new File(dir, "jquery.js"));
StringUtils.copyFile(new File(templatedir, "controls.js"), new File(dir, "controls.js"));
File trimfile = new File("/Users/josh/");
String partialPath =
dir.getAbsolutePath().substring((int) trimfile.getAbsolutePath().length());
OSUtil.openBrowser("http://localhost/~josh/" + partialPath + "/" + html.getName());
document.setExportFile(html);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* overrides the test3 function in TestDriver. It exercises some of the internal of the buffer
* manager
*
* @return whether test3 has passed
*/
protected boolean test3() {
System.out.print("\n Test 3 exercises some of the internals " + "of the buffer manager\n");
int index;
int numPages = NUMBUF + 10;
Page pg = new Page();
PageId pid = new PageId();
PageId[] pids = new PageId[numPages];
boolean status = OK;
System.out.print(
" - Allocate and dirty some new pages, one at " + "a time, and leave some pinned\n");
for (index = 0; status == OK && index < numPages; ++index) {
try {
pid = SystemDefs.JavabaseBM.newPage(pg, 1);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not allocate new page number " + index + 1 + "\n");
e.printStackTrace();
}
if (status == OK) pids[index] = pid;
if (status == OK) {
// Copy the page number + 99999 onto each page. It seems
// unlikely that this bit pattern would show up there by
// coincidence.
int data = pid.pid + 99999;
try {
Convert.setIntValue(data, 0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed\n");
status = FAIL;
e.printStackTrace();
}
// Leave the page pinned if it equals 12 mod 20. This is a
// random number based loosely on a bug report.
if (status == OK) {
if (pid.pid % 20 != 12) {
try {
SystemDefs.JavabaseBM.unpinPage(pid, /*dirty:*/ true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin dirty page " + pid.pid + "\n");
}
}
}
}
}
if (status == OK) {
System.out.print(" - Read the pages\n");
for (index = 0; status == OK && index < numPages; ++index) {
pid = pids[index];
try {
SystemDefs.JavabaseBM.pinPage(pid, pg, false);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not pin page " + pid.pid + "\n");
e.printStackTrace();
}
if (status == OK) {
int data = 0;
try {
data = Convert.getIntValue(0, pg.getpage());
} catch (IOException e) {
System.err.print("*** Convert value failed \n");
status = FAIL;
}
if (data != pid.pid + 99999) {
status = FAIL;
System.err.print("*** Read wrong data back from page " + pid.pid + "\n");
}
}
if (status == OK) {
try {
SystemDefs.JavabaseBM.unpinPage(pid, true); // might not be dirty
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin page " + pid.pid + "\n");
e.printStackTrace();
}
}
if (status == OK && (pid.pid % 20 == 12)) {
try {
SystemDefs.JavabaseBM.unpinPage(pid, /*dirty:*/ true);
} catch (Exception e) {
status = FAIL;
System.err.print("*** Could not unpin page " + pid.pid + "\n");
e.printStackTrace();
}
}
}
}
if (status == OK) System.out.print(" Test 3 completed successfully.\n");
return status;
}
/**
* Listener to update <code>Page</code> size if it changes.
*
* @param e ComponentEvent
*/
public void componentResized(ComponentEvent e) {
pageSize = page.getSize();
}