Example usage for java.util ListIterator remove

Introduction

In this page you can find the example usage for java.util ListIterator remove.

Prototype

void remove();

Source Link

Document

Removes from the list the last element that was returned by #next or #previous (optional operation).

Usage

From source file:Main.java

public static <T> Iterator<T> getReverseIterator(final ListIterator<T> iter) {
    return new Iterator<T>() {
        public boolean hasNext() {
            return iter.hasPrevious();
        }//  ww w .ja  v a 2  s . c o m

        public T next() {
            return iter.previous();
        }

        public void remove() {
            iter.remove();
        }
    };
}

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From source file:org.graphwalker.io.common.Util.java

static public void filterBlockedElements(List<Context> executionContexts) {
    for (Context context : executionContexts) {
        Model model = new Model(context.getModel());
        List<Edge> edges = model.getEdges();
        List<Vertex> vertices = model.getVertices();

        ListIterator<Edge> e_it = edges.listIterator();
        while (e_it.hasNext()) {
            Edge edge = e_it.next();/*from   w w  w . j a v  a2  s. co  m*/
            if (edge.hasProperty("blocked") && (boolean) edge.getProperty("blocked")) {
                e_it.remove();
            }
        }
        ListIterator<Vertex> v_it = vertices.listIterator();
        while (v_it.hasNext()) {
            Vertex vertex = v_it.next();
            if (vertex.hasProperty("blocked") && (boolean) vertex.getProperty("blocked")) {
                e_it = edges.listIterator();
                while (e_it.hasNext()) {
                    Edge e = e_it.next();
                    if (e.getSourceVertex() == vertex) {
                        e_it.remove();
                    } else if (e.getTargetVertex() == vertex) {
                        e_it.remove();
                    }
                }
                v_it.remove();
            }
        }
        context.setModel(model.build());
    }
}

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From source file:Main.java

public static <T> Iterable<T> reverse(final List<T> list) {
    return new Iterable<T>() {
        public Iterator<T> iterator() {
            final ListIterator<T> listIterator = list.listIterator(list.size());

            return new Iterator<T>() {
                public boolean hasNext() {
                    return listIterator.hasPrevious();
                }/*from   w w w  .j  a va 2  s. c  o  m*/

                public T next() {
                    return listIterator.previous();
                }

                public void remove() {
                    listIterator.remove();
                }
            };
        }
    };
}

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From source file:Main.java

public static <E> Iterable<E> reverse(final List<E> list) {
    return new Iterable<E>() {
        @Override//  w w  w.  j a  v  a  2s .c o m
        public Iterator<E> iterator() {
            final ListIterator<E> it = list.listIterator(list.size());

            return new Iterator<E>() {
                @Override
                public boolean hasNext() {
                    return it.hasPrevious();
                }

                @Override
                public E next() {
                    return it.previous();
                }

                @Override
                public void remove() {
                    it.remove();
                }
            };
        }
    };
}

---

From source file:cascading.ComparePlatformsTest.java

private static void createComparisons(String comparison, File lhsRoot, File rhsRoot, TestSuite suite) {
    LOG.info("comparing directory: {}, with: {}", lhsRoot, rhsRoot);

    LinkedList<File> lhsFiles = new LinkedList<File>(
            FileUtils.listFiles(lhsRoot, new RegexFileFilter("^[\\w-]+"), TrueFileFilter.INSTANCE));
    LinkedList<File> rhsFiles = new LinkedList<File>();

    LOG.info("found lhs files: {}", lhsFiles.size());

    int rootLength = lhsRoot.toString().length() + 1;

    ListIterator<File> iterator = lhsFiles.listIterator();
    while (iterator.hasNext()) {
        File localFile = iterator.next();
        File file = new File(rhsRoot, localFile.toString().substring(rootLength));

        if (localFile.toString().endsWith(NONDETERMINISTIC))
            iterator.remove();
        else if (file.exists())
            rhsFiles.add(file);//from   w w  w.j ava 2s .co  m
        else
            iterator.remove();
    }

    LOG.info("running {} comparisons", lhsFiles.size());

    for (int i = 0; i < lhsFiles.size(); i++) {
        File localFile = lhsFiles.get(i);
        File hadoopFile = rhsFiles.get(i);

        suite.addTest(new CompareTestCase(comparison, localFile, hadoopFile));
    }
}

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From source file:gov.nih.nci.protexpress.util.ManageProtAppInputOutputHelper.java

/**
 * Removes the invalid items (inputs/outputs with blank name, filename and notes) from the list.
 *
 * @param lst the list of inputs/outputs.
 *//*  ww w . ja v a  2  s  .  c o  m*/
public static void removeInvalidItems(List<InputOutputObject> lst) {
    ListIterator<InputOutputObject> listIter = lst.listIterator();
    while (listIter.hasNext()) {
        InputOutputObject ioObject = listIter.next();
        if (StringUtils.isBlank(ioObject.getName()) && StringUtils.isBlank(ioObject.getDataFileURL())
                && StringUtils.isBlank(ioObject.getNotes())) {
            listIter.remove();
        }
    }
}

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From source file:exm.stc.ic.ICUtil.java

public static void removeDuplicates(List<Var> varList) {
    ListIterator<Var> it = varList.listIterator();
    HashSet<Var> alreadySeen = new HashSet<Var>();
    while (it.hasNext()) {
        Var v = it.next();// w  w w.  ja  v a  2 s  . co m
        if (alreadySeen.contains(v)) {
            it.remove();
        } else {
            alreadySeen.add(v);
        }
    }
}

---

From source file:exm.stc.ic.ICUtil.java

/**
 * Replace the current instruction with the provided sequence
 * After this is done, next() will return the instruction after
 * the inserted sequence/*from   w ww . j a v a  2s.c om*/
 */
public static void replaceInsts(Block block, ListIterator<Statement> it,
        List<? extends Statement> replacements) {
    for (Statement stmt : replacements) {
        stmt.setParent(block);
    }
    if (replacements.size() == 1) {
        it.set(replacements.get(0));
    } else if (replacements.size() == 0) {
        it.remove();
    } else {
        it.set(replacements.get(0));
        List<? extends Statement> rest = replacements.subList(1, replacements.size());
        for (Statement newInst : rest) {
            it.add(newInst);
        }
    }
}

---

From source file:com.twitter.hraven.etl.FileLister.java

/**
 * prunes the given list/array of files based on their sizes
 *
 * @param maxFileSize -max #bytes to be stored in an hbase cell
 * @param origList - input list of files to be processed
 * @param hdfs - filesystem to be looked at
 * @param inputPath - root dir of the path containing history files
 * @return - pruned array of FileStatus of files to be processed
 *//*from   w w  w . j  a  va2 s  . c o m*/
static FileStatus[] pruneFileListBySize(long maxFileSize, FileStatus[] origList, FileSystem hdfs,
        Path inputPath) {
    LOG.info("Pruning orig list  of size " + origList.length + " for source" + inputPath.toUri());

    long fileSize = 0L;
    List<FileStatus> prunedFileList = new ArrayList<FileStatus>();

    Set<String> toBeRemovedJobId = new HashSet<String>();
    for (int i = 0; i < origList.length; i++) {
        fileSize = origList[i].getLen();

        // check if hbase can store this file if yes, consider it for processing
        if (fileSize <= maxFileSize) {
            prunedFileList.add(origList[i]);
        } else {
            Path hugeFile = origList[i].getPath();
            LOG.info("In getListFilesToProcess filesize " + fileSize + " has exceeded maxFileSize "
                    + maxFileSize + " for " + hugeFile.toUri());

            // note the job id so that we can remove the other file (job conf or job history)
            toBeRemovedJobId.add(getJobIdFromPath(hugeFile));
        }
    }
    if (prunedFileList.size() == 0) {
        LOG.info("Found no files worth processing. Returning 0 sized array");
        return new FileStatus[0];
    }

    String jobId = null;
    ListIterator<FileStatus> it = prunedFileList.listIterator();
    while (it.hasNext()) {
        if (toBeRemovedJobId.size() == 0) {
            // no files to remove
            break;
        }
        Path curFile = it.next().getPath();
        jobId = getJobIdFromPath(curFile);
        if (toBeRemovedJobId.contains(jobId)) {
            LOG.info("Removing from prunedList " + curFile.toUri());
            it.remove();
            /*
             * removing the job id from the hash set since there would be only
             * one file with this job id in the prunedList, the other file with
             * this job id was huge and was already moved out
             */
            toBeRemovedJobId.remove(jobId);
        }
    }
    return prunedFileList.toArray(new FileStatus[prunedFileList.size()]);
}

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From source file:exm.stc.ic.ICUtil.java

public static void replaceVarsInList(Map<Var, Arg> replacements, List<Var> vars, boolean removeDupes,
        boolean removeMapped) {
    // Remove new duplicates
    ArrayList<Var> alreadySeen = null;
    if (removeDupes) {
        alreadySeen = new ArrayList<Var>(vars.size());
    }//from   w  w  w  . j a va  2 s  .  c o m

    ListIterator<Var> it = vars.listIterator();
    while (it.hasNext()) {
        Var v = it.next();
        if (replacements.containsKey(v)) {
            Arg oa = replacements.get(v);
            if (oa.isVar()) {
                if (removeDupes && alreadySeen.contains(oa.getVar())) {
                    it.remove();
                } else {
                    it.set(oa.getVar());
                    if (removeDupes) {
                        alreadySeen.add(oa.getVar());
                    }
                }
            }
        } else {
            if (removeDupes) {
                if (alreadySeen.contains(v)) {
                    it.remove();
                } else {
                    alreadySeen.add(v);
                }
            }
        }
    }
}

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